remove debug grep to show translated C source with line numbers

jtlc

@@ -71,7 +71,6 @@ def translate(args, source, dest):
     return Compiler(result).compile(dest)
 
 def do_compile(args, source_fname, ofname):
-    Popen(['grep', '-n', '.', source_fname]).wait()
     rc = Popen(['gcc', '-o', ofname, '-c', source_fname]).wait()
     return rc == 0