Do not apply APIGW wide settings on externally referenced APIGW

[medikoo]

Fixes serverless/dashboard-plugin#266

And partially addresses #6584

[codecov-io]

Codecov Report

Merging #7034 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #7034      +/-   ##
==========================================
+ Coverage   88.48%   88.48%   +<.01%     
==========================================
  Files         230      230              
  Lines        8452     8453       +1     
==========================================
+ Hits         7479     7480       +1     
  Misses        973      973

Impacted Files	Coverage Δ
.../compile/events/apiGateway/lib/hack/updateStage.js	95.89% <100%> (+0.02%)	⬆️

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[pmuens]

Looks good from a code perspective 👍 LGTM

Just one question: Wouldn't this change be a breaking change or wasn't it even working in the first place?

[medikoo]

Just one question: Wouldn't this change be a breaking change or wasn't it even working in the first place?

It was somewhat working in some cases (in others no, e.g.: #7036 )

I think we should consider a bug, and if someone relied on it, will have to update to alternative method (imo it's better to revert than leave it breaking for non-working or partially-working cases)