kernel32: Remove superfluous casts of void pointers to other pointer types.

dlls/kernel32/tests/pipe.c

@@ -848,7 +848,7 @@ static DWORD CALLBACK named_pipe_client_func(LPVOID p)
 
         ret = GetTokenInformation(process_token, TokenPrivileges, NULL, 0, &Size);
         ok(!ret && GetLastError() == ERROR_INSUFFICIENT_BUFFER, "GetTokenInformation(TokenPrivileges) failed with %d\n", GetLastError());
-        Privileges = (TOKEN_PRIVILEGES *)HeapAlloc(GetProcessHeap(), 0, Size);
+        Privileges = HeapAlloc(GetProcessHeap(), 0, Size);
         ret = GetTokenInformation(process_token, TokenPrivileges, Privileges, Size, &Size);
         ok(ret, "GetTokenInformation(TokenPrivileges) failed with %d\n", GetLastError());
 

dlls/kernel32/tests/virtual.c

@@ -81,8 +81,8 @@ static void test_VirtualAllocEx(void)
         return;
     }
 
-    src = (char *) HeapAlloc( GetProcessHeap(), 0, alloc_size );
-    dst = (char *) HeapAlloc( GetProcessHeap(), 0, alloc_size );
+    src = HeapAlloc( GetProcessHeap(), 0, alloc_size );
+    dst = HeapAlloc( GetProcessHeap(), 0, alloc_size );
     for (i = 0; i < alloc_size; i++)
         src[i] = i & 0xff;