Problem

When selecting file for upload when creating tm resource, the language parsing (logic which try to pars source and target language out of a file name) can mess up the already selected source and target languages.

To reproduce

• click to add new resource and select t5memory
• pick source and target language (ex: en-GB / de-DE)
• upload tmx/tm file with name: aleksdemo-en-uk-nl-nl.tm
• result will be: source lang nl target lang nl

To solve

Proposed solution: remove the logic which detects the languages out of the name. This was meant to be more of debug feature as production one.