Revert "selftests: firmware: add CONFIG_FW_LOADER_USER_HELPER_FALLBACK to config"

This reverts commit 7492902e8d.

The commit tried to address an issue discovered by Dan where he got
a message saying:

'usermode helper disabled so ignoring test'.

Dans's commit is forcing CONFIG_FW_LOADER_USER_HELPER_FALLBACK but just
having CONFIG_FW_LOADER_USER_HELPER suffices to emulate the_FALLBACK
functionality.

Dan's commit is trying to fix an issue which is hidden from a previous
commit. That issue will be addressed properly next.

Fixes: 7492902e8d ("selftests: firmware: add CONFIG_FW_LOADER_USER_HELPER_FALLBACK to config")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

tools/testing/selftests/firmware/config

@@ -1,6 +1,5 @@
 CONFIG_TEST_FIRMWARE=y
 CONFIG_FW_LOADER=y
 CONFIG_FW_LOADER_USER_HELPER=y
-CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y