Fix clang -Wunused-but-set-variable in unit tests

storage/heap/hp_test1.c

@@ -30,7 +30,7 @@ static int flag=0,verbose=0,remove_ant=0,flags[50];
 
 int main(int argc, char **argv)
 {
-  int i,j,error,deleted;
+  int i,j,error;
   HP_INFO *file;
   uchar record[128],key[32];
   const char *filename;
@@ -62,7 +62,6 @@ int main(int argc, char **argv)
   keyinfo[0].seg[0].null_bit= 0;
   keyinfo[0].flag = HA_NOSAME;
 
-  deleted=0;
   bzero((uchar*) flags,sizeof(flags));
 
   printf("- Creating heap-file\n");
@@ -110,8 +109,6 @@ int main(int argc, char **argv)
       if (error || verbose)
 	printf("key: %s  delete: %d  my_errno: %d\n",(char*) key,error,my_errno);
       flags[j]=0;
-      if (! error)
-	deleted++;
     }
     if (heap_check_heap(file,0))
     {

storage/maria/ma_test3.c

@@ -398,7 +398,7 @@ int test_write(MARIA_HA *file,int id,int lock_type)
 
 int test_update(MARIA_HA *file,int id,int lock_type)
 {
-  uint i,lock,found,next,prev,update;
+  uint i,lock,update;
   uint32 tmp;
   char find[4];
   struct record new_record;
@@ -421,24 +421,20 @@ int test_update(MARIA_HA *file,int id,int lock_type)
   bzero((char*) &new_record,sizeof(new_record));
   strmov((char*) new_record.text,"Updated");
 
-  found=next=prev=update=0;
+  update=0;
   for (i=0 ; i < 100 ; i++)
   {
     tmp=rnd(100000);
     int4store(find,tmp);
-    if (!maria_rkey(file,record.id,1,(uchar*) find, HA_WHOLE_KEY,
-                    HA_READ_KEY_EXACT))
-      found++;
-    else
+    if (maria_rkey(file,record.id,1,(uchar*) find, HA_WHOLE_KEY,
+                   HA_READ_KEY_EXACT))
     {
       if (my_errno != HA_ERR_KEY_NOT_FOUND)
       {
 	fprintf(stderr,"%2d: Got error %d from read in update\n",id,my_errno);
 	return 1;
       }
-      else if (!maria_rnext(file,record.id,1))
-	next++;
-      else
+      else if (maria_rnext(file,record.id,1))
       {
 	if (my_errno != HA_ERR_END_OF_FILE)
 	{
@@ -446,9 +442,7 @@ int test_update(MARIA_HA *file,int id,int lock_type)
 		  id,my_errno);
 	  return 1;
 	}
-	else if (!maria_rprev(file,record.id,1))
-	  prev++;
-	else
+	else if (maria_rprev(file,record.id,1))
 	{
 	  if (my_errno != HA_ERR_END_OF_FILE)
 	  {