fstests: many dangerous+auto tests are not dangerous anymore

There are a bunch of tests that are run by the auto group that are
marked dangerous. This was done because the test exercised a crash
or other fatal error that has since been fixed. Remove the dangerous
tag from the auto tests that pass on a 4.17-rc3 kernel as they are
not dangerous anymore.

Signed-Off-By: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>

tests/generic/group

@@ -70,7 +70,7 @@
 065 metadata auto quick
 066 metadata auto quick
 067 auto quick mount
-068 other auto freeze dangerous stress
+068 other auto freeze stress
 069 rw udf auto quick
 070 attr udf auto quick stress
 071 auto quick prealloc
@@ -282,7 +282,7 @@
 277 auto ioctl quick metadata
 278 auto quick clone
 279 auto quick clone
-280 auto quota freeze dangerous
+280 auto quota freeze
 281 auto quick clone
 282 auto quick clone
 283 auto quick clone
@@ -392,7 +392,7 @@
 387 auto clone
 388 shutdown auto log metadata
 389 auto quick acl
-390 auto freeze stress dangerous
+390 auto freeze stress
 391 auto quick rw
 392 shutdown auto quick metadata
 393 auto quick rw
@@ -408,7 +408,7 @@
 403 auto quick attr
 404 auto quick insert
 405 auto mkfs
-406 auto quick dangerous
+406 auto quick
 407 auto quick clone metadata
 408 auto quick clone dedupe metadata
 409 auto quick mount
@@ -448,7 +448,7 @@
 443 auto quick rw
 444 auto quick acl
 445 auto quick rw
-446 auto quick rw dangerous
+446 auto quick rw
 447 auto clone
 448 auto quick rw
 449 auto quick acl enospc
@@ -461,11 +461,11 @@
 456 auto quick metadata
 457 auto log replay clone
 458 auto quick clone
-459 auto dangerous
+459 auto
 460 auto quick rw
 461 auto shutdown stress
 462 auto quick dax
-463 auto quick clone dangerous
+463 auto quick clone
 464 auto rw
 465 auto rw quick aio
 466 auto quick rw