rm/valid_langs_session

[JarbasAl]

valid languages are defined by core in mycroft.conf , these can not come from Session

core is the authority about what languages it natively supports, session can only assign the current language

if session claims to support a language that core did not load / register intent for that will cause issues, adding this was an oversight

[codecov]

Codecov Report

Attention: 34 lines in your changes are missing coverage. Please review.

Comparison is base (6616569) 53.58% compared to head (067cec4) 52.92%.
Report is 8 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev      #57      +/-   ##
==========================================
- Coverage   53.58%   52.92%   -0.67%     
==========================================
  Files          14       14              
  Lines        1073     1111      +38     
==========================================
+ Hits          575      588      +13     
- Misses        498      523      +25     

Files	Coverage Δ
ovos_bus_client/client/waiter.py	82.75% <100.00%> (+3.59%)	⬆️
ovos_bus_client/version.py	0.00% <0.00%> (ø)
ovos_bus_client/client/client.py	37.61% <75.00%> (+3.18%)	⬆️
ovos_bus_client/session.py	55.24% <33.33%> (-0.32%)	⬇️
ovos_bus_client/scripts.py	11.94% <6.45%> (-4.73%)	⬇️

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.