Remove RemoteProvsioner tests from presubmit

RemoteProvsioner is deprecated, and already disabled/non-functional
on some builds. Turn off the tests because they are causing spurious
presubmit failures.

Test: n/a
Bug: 266181756
Change-Id: I1d64bd6ba444008bae6c298f689b5c562b2f461d
diff --git a/TEST_MAPPING b/TEST_MAPPING
deleted file mode 100644
index 1295e30..0000000
--- a/TEST_MAPPING
+++ /dev/null
@@ -1,7 +0,0 @@
-{
-  "presubmit": [
-    {
-      "name": "RemoteProvisionerUnitTests"
-    }
-  ]
-}