chore(engine): revert URL encoding

Reverts:
- fix(engine): remove commented line
  This reverts commit 1691251fefc8703ddc25c5e27aa3ad8c89af0677.
- fix(engine): fix URL to URI convert for local jar urls
  This reverts commit ac4bc86add13bbabf41f0c27a071ba82c32aeaf3.
- fix(engine): fix encoding of resource urls with whitespaces
  This reverts commit 38fc13b7e69e669599e7efb30d2149c884159762.
- fix(engine/parser): use encoded url for parser url
  This reverts commit cdf6805e8e46f35a1c87d31409b0e39edbf91bfb.

related to #CAM-2227
fix(engine): replace umlauts in resource URLs

related to CAM-2227
Merge branch 'CAM-2227' of github.com:camunda/camunda-bpm-platform into CAM-2227