Revert "GCS Share: copy welcome qml files to share directory"

This commit mistakeningly checked in some files that were written
by m_thread. These files were not used by the GCS and did not do
anything. All credit for the files goes to m_thread.

This reverts commit 8594d38f2808cf6744f6e58a4f58331a380c3811.
GCS Share: copy welcome qml files to share directory

This is largely redundant but facilitates using the Qt
deployment tools.
Merge pull request #1361 from peabody124/remove_unattributed_file

Remove unattributed file
Merge remote-tracking branch 'upstream/next' into next