qemu-iotests: get rid of AWK_PROG

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

tests/qemu-iotests/check

@@ -128,7 +128,7 @@ tmp="${TEST_DIR}"/$$
 
 _wallclock()
 {
-    date "+%H %M %S" | $AWK_PROG '{ print $1*3600 + $2*60 + $3 }'
+    date "+%H %M %S" | awk '{ print $1*3600 + $2*60 + $3 }'
 }
 
 _timestamp()
@@ -147,7 +147,7 @@ _wrapup()
         if [ -f $TIMESTAMP_FILE -a -f $tmp.time ]
         then
             cat $TIMESTAMP_FILE $tmp.time \
-            | $AWK_PROG '
+            | awk '
         { t[$1] = $2 }
 END        { if (NR > 0) {
             for (i in t) print i " " t[i]

tests/qemu-iotests/common

@@ -366,7 +366,7 @@ testlist options
     if $xpand
     then
         have_test_arg=true
-        $AWK_PROG </dev/null '
+        awk </dev/null '
 BEGIN        { for (t='$start'; t<='$end'; t++) printf "%03d\n",t }' \
         | while read id
         do

tests/qemu-iotests/common.config

@@ -56,9 +56,6 @@ _fatal()
     exit 1
 }
 
-export AWK_PROG="`set_prog_path awk`"
-[ "$AWK_PROG" = "" ] && _fatal "awk not found"
-
 if [ -z "$QEMU_PROG" ]; then
     export QEMU_PROG="`set_prog_path qemu`"
 fi