wcc: delete unused warning counters and ww err twin

cmd/wcc/err.c

@@ -1,13 +1,11 @@
 /*
- * Plan 9 style: short, no levels beyond fatal/error/warn, no colour.
+ * Plan 9 style: short, no levels beyond fatal/error, no colour.
  */
 #include "ww.h"
 #include <stdlib.h>
 #include <string.h>
 
 Pos	noPos = { "<none>", 0, 0 };
-int	nerrors;
-int	nwarnings;
 FILE	*errout;	/* set by main; defaults to stderr */
 
 static FILE *
@@ -52,19 +50,4 @@ errorf(Pos p, const char *fmt, ...)
 	vfprintf(f, fmt, ap);
 	va_end(ap);
 	fprintf(f, "\n");
-	nerrors++;
-}
-
-void
-warnf(Pos p, const char *fmt, ...)
-{
-	FILE *f = out();
-	va_list ap;
-	prefix(p);
-	fprintf(f, "warning: ");
-	va_start(ap, fmt);
-	vfprintf(f, fmt, ap);
-	va_end(ap);
-	fprintf(f, "\n");
-	nwarnings++;
 }