Removed _USE_MATH_DEFINES directive (#596)

Since none of the `M_` prefixed constants are used anywhere in the code, this is unnecessary.  It's also Windows-specific, so these non-standard defines shouldn't be used anyway.

Ref: https://learn.microsoft.com/en-us/cpp/c-runtime-library/math-constants?view=msvc-170

DebugUtils/Source/DebugDraw.cpp

@@ -16,7 +16,6 @@
 // 3. This notice may not be removed or altered from any source distribution.
 //
 
-#define _USE_MATH_DEFINES
 #include <string.h>
 #include "DebugDraw.h"
 #include "DetourMath.h"

DebugUtils/Source/RecastDebugDraw.cpp

@@ -16,7 +16,6 @@
 // 3. This notice may not be removed or altered from any source distribution.
 //
 
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include "DebugDraw.h"
 #include "RecastDebugDraw.h"

DebugUtils/Source/RecastDump.cpp

@@ -16,7 +16,6 @@
 // 3. This notice may not be removed or altered from any source distribution.
 //
 
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <stdio.h>
 #include <stdarg.h>

DetourCrowd/Source/DetourCrowd.cpp

@@ -16,7 +16,6 @@
 // 3. This notice may not be removed or altered from any source distribution.
 //
 
-#define _USE_MATH_DEFINES
 #include <string.h>
 #include <float.h>
 #include <stdlib.h>

Recast/Source/Recast.cpp

@@ -20,7 +20,6 @@
 #include "RecastAlloc.h"
 #include "RecastAssert.h"
 
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <string.h>
 #include <stdio.h>

Recast/Source/RecastArea.cpp

@@ -17,7 +17,6 @@
 //
 
 #include <float.h>
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <string.h>
 #include <stdlib.h>

Recast/Source/RecastContour.cpp

@@ -16,7 +16,6 @@
 // 3. This notice may not be removed or altered from any source distribution.
 //
 
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <string.h>
 #include <stdio.h>

Recast/Source/RecastLayers.cpp

@@ -17,7 +17,6 @@
 //
 
 #include <float.h>
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <string.h>
 #include <stdlib.h>

Recast/Source/RecastMesh.cpp

@@ -16,7 +16,6 @@
 // 3. This notice may not be removed or altered from any source distribution.
 //
 
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <string.h>
 #include <stdio.h>

Recast/Source/RecastMeshDetail.cpp

@@ -17,7 +17,6 @@
 //
 
 #include <float.h>
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <string.h>
 #include <stdlib.h>

Recast/Source/RecastRasterization.cpp

@@ -16,7 +16,6 @@
 // 3. This notice may not be removed or altered from any source distribution.
 //
 
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <stdio.h>
 #include "Recast.h"

Recast/Source/RecastRegion.cpp

@@ -17,7 +17,6 @@
 //
 
 #include <float.h>
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <string.h>
 #include <stdlib.h>

RecastDemo/Source/ConvexVolumeTool.cpp

@@ -16,7 +16,6 @@
 // 3. This notice may not be removed or altered from any source distribution.
 //
 
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <stdio.h>
 #include <string.h>

RecastDemo/Source/CrowdTool.cpp

@@ -16,7 +16,6 @@
 // 3. This notice may not be removed or altered from any source distribution.
 //
 
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <stdio.h>
 #include <string.h>

RecastDemo/Source/InputGeom.cpp

@@ -16,7 +16,6 @@
 // 3. This notice may not be removed or altered from any source distribution.
 //
 
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <stdio.h>
 #include <ctype.h>

RecastDemo/Source/MeshLoaderObj.cpp

@@ -20,7 +20,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <cstring>
-#define _USE_MATH_DEFINES
 #include <math.h>
 
 rcMeshLoaderObj::rcMeshLoaderObj() :

RecastDemo/Source/NavMeshPruneTool.cpp

@@ -16,7 +16,6 @@
 // 3. This notice may not be removed or altered from any source distribution.
 //
 
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <stdio.h>
 #include <string.h>

RecastDemo/Source/NavMeshTesterTool.cpp

@@ -16,7 +16,6 @@
 // 3. This notice may not be removed or altered from any source distribution.
 //
 
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <stdio.h>
 #include <stdlib.h>

RecastDemo/Source/OffMeshConnectionTool.cpp

@@ -16,7 +16,6 @@
 // 3. This notice may not be removed or altered from any source distribution.
 //
 
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <stdio.h>
 #include <string.h>

RecastDemo/Source/Sample.cpp

@@ -16,7 +16,6 @@
 // 3. This notice may not be removed or altered from any source distribution.
 //
 
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <stdio.h>
 #include "Sample.h"

RecastDemo/Source/SampleInterfaces.cpp

@@ -1,4 +1,3 @@
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <stdio.h>
 #include <stdarg.h>

RecastDemo/Source/Sample_Debug.cpp

@@ -16,7 +16,6 @@
 // 3. This notice may not be removed or altered from any source distribution.
 //
 
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <stdio.h>
 #include "Sample_Debug.h"

RecastDemo/Source/Sample_SoloMesh.cpp

@@ -16,7 +16,6 @@
 // 3. This notice may not be removed or altered from any source distribution.
 //
 
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <stdio.h>
 #include <string.h>

RecastDemo/Source/Sample_TempObstacles.cpp

@@ -16,7 +16,6 @@
 // 3. This notice may not be removed or altered from any source distribution.
 //
 
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <stdio.h>
 #include <string.h>

RecastDemo/Source/Sample_TileMesh.cpp

@@ -16,7 +16,6 @@
 // 3. This notice may not be removed or altered from any source distribution.
 //
 
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include <stdio.h>
 #include <string.h>

RecastDemo/Source/imgui.cpp

@@ -18,7 +18,6 @@
 
 #include <stdio.h>
 #include <string.h>
-#define _USE_MATH_DEFINES
 #include <math.h>
 #include "imgui.h"
 

RecastDemo/Source/imguiRenderGL.cpp

@@ -16,7 +16,6 @@
 // 3. This notice may not be removed or altered from any source distribution.
 //
 
-#define _USE_MATH_DEFINES
 #include <cmath>
 #include <cstdio>
 #include "imgui.h"

RecastDemo/Source/main.cpp

@@ -17,7 +17,6 @@
 //
 
 #include <cstdio>
-#define _USE_MATH_DEFINES
 #include <cmath>
 
 #include "SDL.h"