remove dependencies from sync.profile

the CI obtains them from the qt5 super repo nowadays.

Change-Id: Iec8d6adc5dc8d0c3d9f4c369d901e0352bd746f1
Reviewed-by: Liang Qi <liang.qi@qt.io>

sync.profile

-# Module dependencies.
-# Every module that is required to build this module should have one entry.
-# Each of the module version specifiers can take one of the following values:
-#   - A specific Git revision.
-#   - any git symbolic ref resolvable from the module's repository (e.g. "refs/heads/master" to track master branch)
-#   - an empty string to use the same branch under test (dependencies will become "refs/heads/master" if we are in the master branch)
-#
-%dependencies = (
-        "qtbase" => "",
+%modules = ( # path to module name map
 );