Do not install tethering in TEST_MAPPING

The current tethering module has in-progress changes in non-mainline
branches, so it cannot be installed.
Disable the tests in non-mainline branches, considering that they are
still run in mainline branches, which will contain the same tethering
code, but without the connectivity artifacts added to the tethering
apex.

Bug: 177290955
Test: TEST_MAPPING needs to be tested on the infra
Ignore-AOSP-First: This change must not go into AOSP
Change-Id: I39dd011a8baa16c9b8eb33ec2a2e4dcaedf25b76
diff --git a/TEST_MAPPING b/TEST_MAPPING
index 1db4baa..5128519 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -13,7 +13,8 @@
   ],
   "mainline-presubmit": [
     {
-      "name": "CtsNetTestCasesLatestSdk[CaptivePortalLoginGoogle.apk+NetworkStackGoogle.apk+com.google.android.resolv.apex+com.google.android.tethering.apex]",
+      // TODO: add back the tethering modules when updatable in this branch
+      "name": "CtsNetTestCasesLatestSdk[CaptivePortalLoginGoogle.apk+NetworkStackGoogle.apk+com.google.android.resolv.apex]",
       "options": [
         {
           "exclude-annotation": "com.android.testutils.SkipPresubmit"
@@ -24,7 +25,8 @@
   // Tests on physical devices with SIM cards: postsubmit only for capacity constraints
   "mainline-postsubmit": [
     {
-      "name": "CtsNetTestCasesLatestSdk[CaptivePortalLoginGoogle.apk+NetworkStackGoogle.apk+com.google.android.resolv.apex+com.google.android.tethering.apex]",
+      // TODO: add back the tethering module when updatable in this branch
+      "name": "CtsNetTestCasesLatestSdk[CaptivePortalLoginGoogle.apk+NetworkStackGoogle.apk+com.google.android.resolv.apex]",
       "keywords": ["sim"]
     }
   ]