Fix two warnings of unusued variable or variable set but not used


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13939 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/helgrind/hg_addrdescr.c b/helgrind/hg_addrdescr.c
index 16eb076..5fe507f 100644
--- a/helgrind/hg_addrdescr.c
+++ b/helgrind/hg_addrdescr.c
@@ -145,10 +145,9 @@
 
 static void void_printf(const HChar *format, ...)
 {
-   UInt ret;
    va_list vargs;
    va_start(vargs, format);
-   ret = VG_(vprintf)(format, vargs);
+   VG_(vprintf)(format, vargs);
    va_end(vargs);
 }
 
diff --git a/helgrind/hg_main.c b/helgrind/hg_main.c
index a0684e1..276f730 100644
--- a/helgrind/hg_main.c
+++ b/helgrind/hg_main.c
@@ -4753,7 +4753,6 @@
 /* return True if request recognised, False otherwise */
 static Bool handle_gdb_monitor_command (ThreadId tid, HChar *req)
 {
-   UWord ret = 0;
    HChar* wcmd;
    HChar s[VG_(strlen(req))]; /* copy for strtok_r */
    HChar *ssaveptr;
@@ -4776,7 +4775,6 @@
       print_monitor_help();
       return True;
    case  1: /* info */
-      ret = 1;
       wcmd = VG_(strtok_r) (NULL, " ", &ssaveptr);
       switch (kwdid = VG_(keyword_id) 
               ("locks",