Cleanup some bytecompiler code

[raskad]

This Pull Request changes the following:

• Remove some unused code / arguments for method compilation functions.
• Only push PushUndefined + Return at the end of a function if needed.
• Remove an expect in try...catch compilation.

[github-actions]

Test262 conformance changes

Test result	main count	PR count	difference
Total	94,657	94,657	0
Passed	73,889	73,889	0
Ignored	17,505	17,505	0
Failed	3,263	3,263	0
Panics	0	0	0
Conformance	78.06%	78.06%	0.00%

[codecov]

Codecov Report

Merging #2918 (a429825) into main (128c137) will increase coverage by 0.01%.
The diff coverage is 23.72%.

@@            Coverage Diff             @@
##             main    #2918      +/-   ##
==========================================
+ Coverage   51.96%   51.98%   +0.01%     
==========================================
  Files         431      431              
  Lines       43662    43647      -15     
==========================================
- Hits        22691    22690       -1     
+ Misses      20971    20957      -14     

Impacted Files	Coverage Δ
boa_engine/src/bytecompiler/class.rs	15.05% <0.00%> (ø)
...gine/src/bytecompiler/expression/object_literal.rs	42.85% <33.33%> (ø)
boa_engine/src/bytecompiler/mod.rs	65.78% <50.00%> (+1.22%)	⬆️
boa_engine/src/bytecompiler/function.rs	90.90% <100.00%> (+0.28%)	⬆️
boa_engine/src/bytecompiler/statement/try.rs	100.00% <100.00%> (ø)

[jedel1043]

Nice refactor!