Revert "Add adb-remount-sh to presubmit & kernel-presubmit group."

This test does not clean up remounts properly, and cause unittests to fail.

This reverts commit 3360d387d205ce3f89b311c20f25adbcec1bebbc.

Reason for revert: b/384756313

Change-Id: I8eccfdfe07b688bdd1e37cc858cbd9fbdd10dadc
diff --git a/fs_mgr/TEST_MAPPING b/fs_mgr/TEST_MAPPING
index 192232d..32e8b88 100644
--- a/fs_mgr/TEST_MAPPING
+++ b/fs_mgr/TEST_MAPPING
@@ -34,9 +34,6 @@
   ],
   "kernel-presubmit": [
     {
-      "name": "adb-remount-sh"
-    },
-    {
       "name": "libdm_test"
     },
     {