[krun] Removed no longer used internal method resolveURLs()

Summary:
Follow-up to f7cf3b676a4ed491effde0e31fd18c09e913dfe5
GIT_SILENT

Reviewers: Frameworks, davidedmundson, dfaure

Reviewed By: davidedmundson

Subscribers: kde-frameworks-devel

Tags: Frameworks

Differential Revision: https://phabricator.kde.org/D28537