selftests: remove the LSM_ID_IMA check in lsm/lsm_list_modules_test

The IMA LSM ID token was removed as IMA isn't yet a proper LSM, but
we forgot to remove the check from the selftest.
Reported-by: kernel test robot <yujie.liu@intel.com>
Closes: https://lore.kernel.org/r/202311221047.a9Dww3vY-lkp@intel.com/Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>

tools/testing/selftests/lsm/lsm_list_modules_test.c

@@ -101,9 +101,6 @@ TEST(correct_lsm_list_modules)
 		case LSM_ID_TOMOYO:
 			name = "tomoyo";
 			break;
-		case LSM_ID_IMA:
-			name = "ima";
-			break;
 		case LSM_ID_APPARMOR:
 			name = "apparmor";
 			break;