tests: disable infinitepush tests for simple store

Infinitepush relies heavily on bundles and bundlerepo. As such,
it won't be easy to make compatible with alternate storage
backends at this time.

Let's disable the tests when running with our simple store.

Differential Revision: https://phab.mercurial-scm.org/D3062

tests/test-infinitepush-bundlestore.t

@@ -1,3 +1,4 b''
+#require no-reposimplestore
 
 Create an ondisk bundlestore in .hg/scratchbranches
   $ . "$TESTDIR/library-infinitepush.sh"

tests/test-infinitepush-ci.t

@@ -1,3 +1,5 b''
+#require no-reposimplestore
+
 Testing the case when there is no infinitepush extension present on the client
 side and the server routes each push to bundlestore. This case is very much
 similar to CI use case.

tests/test-infinitepush.t

@@ -1,3 +1,5 b''
+#require no-reposimplestore
+
 Testing infinipush extension and the confi options provided by it
 
 Setup