virt-yajl.m4: Drop useless check for qemu

The code tries to detect installed version of qemu to learn if it
uses HMP or QMP and enable YAJL based on that. Well, we support
only QMP and also minimal required version of qemu is 1.5.0 so
the check would have enabled yajl anyway.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

m4/virt-yajl.m4

@@ -23,26 +23,6 @@ AC_DEFUN([LIBVIRT_ARG_YAJL],[
 
 AC_DEFUN([LIBVIRT_CHECK_YAJL],[
   dnl YAJL JSON library http://lloyd.github.com/yajl/
-  if test "$with_qemu:$with_yajl" = yes:check; then
-    dnl Some versions of qemu require the use of yajl; try to detect them
-    dnl here, although we do not require qemu to exist in order to compile.
-    dnl This check mirrors src/qemu/qemu_capabilities.c
-    AC_PATH_PROGS([QEMU], [qemu-kvm qemu kvm qemu-system-x86_64],
-                  [], [$PATH:/usr/bin:/usr/libexec])
-    if test -x "$QEMU"; then
-      if $QEMU -help 2>/dev/null | grep -q libvirt; then
-        with_yajl=yes
-      else
-        [qemu_version_sed='s/.*ersion \([0-9.,]*\).*/\1/']
-        qemu_version=`$QEMU -version | sed "$qemu_version_sed"`
-        case $qemu_version in
-          [[1-9]].* | 0.15.* ) with_yajl=yes ;;
-          0.* | '' ) ;;
-          *) AC_MSG_ERROR([Unexpected qemu version string]) ;;
-        esac
-      fi
-    fi
-  fi
 
   LIBVIRT_CHECK_LIB_ALT([YAJL], [yajl],
                         [yajl_parse_complete], [yajl/yajl_common.h],