fstests: remove generic/484

Generic/484 tests functionality that isn't really related to file
systems, and has failed every since it was added.  Remove it as it
serves no puropse in xfstests.

[Eryu: also remove src/t_locks_execve.c and its entries in
src/Makefile and .gitignore]

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>

tests/generic/484

@@ -1,51 +0,0 @@
-#! /bin/bash
-# SPDX-License-Identifier: GPL-2.0
-# Copyright (c) 2018 Red Hat Inc.  All Rights Reserved.
-#
-# FS QA Test 484
-#
-# POSIX requires that record locks are preserved across an execve(2). But
-# there's bug that record locks are released if process is multithreaded at the
-# time that execve is called.
-#
-# Fixed by patch from Jeff Layton:
-# locks: change POSIX lock ownership on execve when files_struct is displaced
-#
-seq=`basename $0`
-seqres=$RESULT_DIR/$seq
-echo "QA output created by $seq"
-
-here=`pwd`
-tmp=/tmp/$$
-status=1	# failure is the default!
-trap "_cleanup; exit \$status" 0 1 2 3 15
-
-_cleanup()
-{
-	cd /
-	rm -f $tmp.*
-}
-
-# get standard environment, filters and checks
-. ./common/rc
-. ./common/filter
-
-# remove previous $seqres.full before test
-rm -f $seqres.full
-
-# real QA test starts here
-_supported_fs generic
-_supported_os Linux
-_require_test
-_require_test_program "t_locks_execve"
-
-# prepare a 4k testfile in TEST_DIR
-$XFS_IO_PROG -f -c "pwrite -S 0xFF 0 4096" \
-	$TEST_DIR/t_lock_execve_file >> $seqres.full 2>&1
-
-$here/src/t_locks_execve $TEST_DIR/t_lock_execve_file
-
-# success, all done
-echo "Silence is golden"
-status=0
-exit

tests/generic/484.out

@@ -1,2 +0,0 @@
-QA output created by 484
-Silence is golden

tests/generic/group

@@ -486,7 +486,6 @@
 481 auto quick log metadata
 482 auto metadata replay
 483 auto quick log metadata
-484 auto quick
 485 auto quick insert
 486 auto quick attr
 487 auto quick eio