Fix Perl client header params (!11713) · Merge requests · OpenAPI Tools / openapi-generator

Created by: 7474

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The following error occurred when using the DELETE method.

Not a HASH reference at /app/local/lib/perl5/HTTP/Headers.pm line 160.

Matched the header settings of the DELETE method with GET and HEAD. I also deleted unreferenced variables.

@wing328 @yue9944882