janitorial: Remove superfluous casts of void pointers to other pointer types.

dlls/amstream/amstream.c

@@ -260,7 +260,7 @@ static HRESULT WINAPI IAMMultiMediaStreamImpl_AddMediaStream(IAMMultiMediaStream
     hr = MediaStream_create((IMultiMediaStream*)iface, PurposeId, This->StreamType, &pStream);
     if (SUCCEEDED(hr))
     {
-        pNewStreams = (IMediaStream**)CoTaskMemAlloc((This->nbStreams+1)*sizeof(IMediaStream*));
+        pNewStreams = CoTaskMemAlloc((This->nbStreams+1)*sizeof(IMediaStream*));
         if (!pNewStreams)
         {
             IMediaStream_Release(pStream);

dlls/msxml3/nodemap.c

@@ -150,7 +150,7 @@ xmlChar *xmlChar_from_wchar( LPWSTR str )
     xmlChar *xmlstr;
 
     len = WideCharToMultiByte( CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL );
-    xmlstr = (xmlChar*) HeapAlloc( GetProcessHeap(), 0, len );
+    xmlstr = HeapAlloc( GetProcessHeap(), 0, len );
     if ( xmlstr )
         WideCharToMultiByte( CP_UTF8, 0, str, -1, (LPSTR) xmlstr, len, NULL, NULL );
     return xmlstr;

dlls/riched20/reader.c

@@ -2682,7 +2682,7 @@ static void
 RTFFlushCPOutputBuffer(RTF_Info *info)
 {
         int bufferMax = info->dwCPOutputCount * 2 * sizeof(WCHAR);
-        WCHAR *buffer = (WCHAR *)RTFAlloc(bufferMax);
+        WCHAR *buffer = RTFAlloc(bufferMax);
         int length;
 
         length = MultiByteToWideChar(info->codePage, 0, info->cpOutputBuffer,

dlls/shlwapi/tests/string.c

@@ -605,7 +605,7 @@ static void test_StrCmpW(void)
 static WCHAR *CoDupStrW(const char* src)
 {
   INT len = MultiByteToWideChar(CP_ACP, 0, src, -1, NULL, 0);
-  WCHAR* szTemp = (WCHAR*)CoTaskMemAlloc(len * sizeof(WCHAR));
+  WCHAR* szTemp = CoTaskMemAlloc(len * sizeof(WCHAR));
   MultiByteToWideChar(CP_ACP, 0, src, -1, szTemp, len);
   return szTemp;
 }

dlls/user32/tests/cursoricon.c

@@ -94,7 +94,7 @@ static void test_CopyImage_Bitmap(int depth)
     unsigned int i;
 
     /* Create a device-independent bitmap (DIB) */
-    info = (BITMAPINFO *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
+    info = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
     info->bmiHeader.biSize = sizeof(info->bmiHeader);
     info->bmiHeader.biWidth = 2;
     info->bmiHeader.biHeight = 2;