Remove the SMP renderer feature

code/renderer/tr_image.c

@@ -1495,8 +1495,7 @@ qhandle_t RE_RegisterSkin( const char *name ) {
 	Q_strncpyz( skin->name, name, sizeof( skin->name ) );
 	skin->numSurfaces = 0;
 
-	// make sure the render thread is stopped
-	R_SyncRenderThread();
+	R_IssuePendingRenderCommands();
 
 	// If not a .skin file, load as a single shader
 	if ( strcmp( name + strlen( name ) - 5, ".skin" ) ) {