removed useless code

Found while reviewing #3880

code/AssetLib/Collada/ColladaParser.cpp

@@ -231,11 +231,7 @@ void ColladaParser::UriDecodePath(aiString &ss) {
 
     // Maxon Cinema Collada Export writes "file:///C:\andsoon" with three slashes...
     // I need to filter it without destroying linux paths starting with "/somewhere"
-#if defined(_MSC_VER)
     if (ss.data[0] == '/' && isalpha((unsigned char)ss.data[1]) && ss.data[2] == ':') {
-#else
-    if (ss.data[0] == '/' && isalpha((unsigned char)ss.data[1]) && ss.data[2] == ':') {
-#endif
         --ss.length;
         ::memmove(ss.data, ss.data + 1, ss.length);
         ss.data[ss.length] = 0;