Bug 1432813 - Remove warning on "./mach marionette-test". r=maja_zf

It is not possible to hook "./mach test" up to "./mach marionette test"
because the test flavours system does not allow delegation to subcommands.

Users find it annoying that using "./mach test" causes a warning
to be emitted.  Considering we will not be able to remove "./mach
marionette-test", this patch instead quenches the warning.

MozReview-Commit-ID: Ia0ukcN3JMJ

--HG--
extra : rebase_source : c62c13f9055178f1b3eb8f7e58b6f0fc01d06b03

testing/marionette/mach_commands.py

@@ -70,20 +70,14 @@ def run_marionette(tests, binary=None, topsrcdir=None, **kwargs):
 
 
 @CommandProvider
-class MachCommands(MachCommandBase):
-
-    """Deprecated in favour of ./mach marionette <subcommand>."""
-
+class MarionetteTest(MachCommandBase):
     @Command("marionette-test",
              category="testing",
              description="Remote control protocol to Gecko, used for functional UI tests and browser automation.",
              conditions=[is_firefox_or_android],
              parser=create_parser_tests,
              )
-    def run_marionette_test(self, tests, **kwargs):
-        print("warning: ./mach marionette-test is deprecated; "
-              "please use ./mach marionette test", file=sys.stderr)
-
+    def marionette_test(self, tests, **kwargs):
         if "test_objects" in kwargs:
             tests = []
             for obj in kwargs["test_objects"]: