Fix compiler warnings

Changes

• Make formatter functions normal namespace functions (non static)
• Remove unused json parameters

Fix

Fixes unused function and unused parameter compile-time warnings (see oai-cn5g-pcf#10)

requested review from @tien-thinh.nguyen

assigned to @defosseu

changed milestone to %v2.0.0 Release

added Fix Refactor labels

mentioned in merge request oai-cn5g-pcf!38 (closed)

approved this merge request

added 12 commits

• 1f8b96e0...bed62ce3 - 11 commits from branch develop
• e72b033e - Merge branch 'develop' into fix_pcf_warnings

Compare with previous version

approved this merge request

merged

mentioned in commit 7ae969ff