dont replicate the -nopreprocess command if it is given when using swig as compiler

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@10933 626c5289-ae23-0410-ae9c-e8d60b6d4f22

CCache/ccache.c

@@ -887,7 +887,6 @@ static void process_args(int argc, char **argv)
 
 		/* the input file is already preprocessed */
 		if (swig && strcmp(argv[i], "-nopreprocess") == 0) {
-			args_add(stripped_args, argv[i]);
 			direct_i_file = 1;
 			continue;
 		}