Revert "Add the 'open-with' action and show the right-click menu."

This commit was only intended for the master branch (KDE Applications
14.12) as it is a new feature and introduces new strings.

It also restores some translations in ark.appdata.xml that were changed
by mistake in the same commit.

This reverts commit ed3ea7db.

(I'm mentioning the digest and UI folks again to make sure everyone's
aware of the right version and branch that will have this change)

CCBUG:  179066
DIGEST:
DOC: