[FunctionNaming] Revert annotations that are ignored by default

[marschwar]

This resolves #3944 and partially reverts #3892.

While I strongly believe that detekt should not tailor the defaults for specific frameworks, I also agree with @G00fY2 and @cortinico that this change should not have been a by-product of another unrelated PR.

[codecov]

Codecov Report

Merging #3948 (c20dba2) into main (d81d6a2) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##               main    #3948   +/-   ##
=========================================
  Coverage     83.58%   83.58%           
  Complexity     3123     3123           
=========================================
  Files           456      456           
  Lines          9014     9014           
  Branches       1752     1752           
=========================================
  Hits           7534     7534           
  Misses          564      564           
  Partials        916      916           

Impacted Files	Coverage Δ
...b/arturbosch/detekt/rules/naming/FunctionNaming.kt	96.15% <100.00%> (ø)

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