msxml3: Do not cast void pointers to other pointer types.

dlls/msxml3/element.c

@@ -478,7 +478,7 @@ static HRESULT WINAPI domelem_get_tagName(
     len = MultiByteToWideChar( CP_UTF8, 0, (LPCSTR) element->name, -1, NULL, 0 );
     if (element->ns)
         len += MultiByteToWideChar( CP_UTF8, 0, (LPCSTR) element->ns->prefix, -1, NULL, 0 );
-    str = (LPWSTR) HeapAlloc( GetProcessHeap(), 0, len * sizeof (WCHAR) );
+    str = HeapAlloc( GetProcessHeap(), 0, len * sizeof (WCHAR) );
     if ( !str )
         return E_OUTOFMEMORY;
     if (element->ns)

dlls/msxml3/node.c

@@ -257,7 +257,7 @@ BSTR bstr_from_xmlChar( const xmlChar *buf )
         return NULL;
 
     len = MultiByteToWideChar( CP_UTF8, 0, (LPCSTR) buf, -1, NULL, 0 );
-    str = (LPWSTR) HeapAlloc( GetProcessHeap(), 0, len * sizeof (WCHAR) );
+    str = HeapAlloc( GetProcessHeap(), 0, len * sizeof (WCHAR) );
     if ( !str )
         return NULL;
     MultiByteToWideChar( CP_UTF8, 0, (LPCSTR) buf, -1, str, len );

dlls/msxml3/saxreader.c

@@ -161,7 +161,7 @@ static BSTR bstr_from_xmlCharN(const xmlChar *buf, int len)
 
     dLen = MultiByteToWideChar(CP_UTF8, 0, (LPCSTR)buf, len, NULL, 0);
     if(len != -1) dLen++;
-    str = (LPWSTR)HeapAlloc(GetProcessHeap(), 0, dLen * sizeof (WCHAR));
+    str = HeapAlloc(GetProcessHeap(), 0, dLen * sizeof (WCHAR));
     if (!str)
         return NULL;
     MultiByteToWideChar(CP_UTF8, 0, (LPCSTR)buf, len, str, dLen);