trivial: remove legacy VERB_LOG_MSGS, unused since ages

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Makefile

@@ -17,9 +17,6 @@ ifeq ($(ARCH),)
    ARCH = unix
 endif
 
-# Also, you can set USER_CFLAGS, like this (or on the command line)
-# USER_CFLAGS = -DVERB_LOG_MSGS
-
 #### In theory, users should not change stuff below this line (but please read)
 
 # classic cross-compilation tool-set

diag.c

@@ -58,11 +58,7 @@ void __pp_diag(struct pp_instance *ppi, enum pp_diag_things th,
 unsigned long pp_diag_parse(char *diaglevel)
 {
 	unsigned long res = 0;
-	int i = 28;
-
-#ifdef VERB_LOG_MSGS /* compatible with older way: this enables all */
-	return ~0xf;
-#endif
+	int i = 28; /* number of bits to shift the nibble: 28..31 is first */
 
 	while (*diaglevel && i >= 4) {
 		if (*diaglevel < '0' || *diaglevel > '3')