Remove inactive maligned linter

This linter has been deprecated for a while with the suggestion to use
govet 'fieldalignment'.

As of a recent release the linter no longer produced a report.

As of the v1.59.0 release attempting to use this linter produces an
error.

Remove all references to this linter from the .golangci.yml config
file bundled in this repo.

.golangci.yml

@@ -17,10 +17,6 @@ linters:
  - gofmt
  - revive
  - gosec
-
- # Deprecated linter, but still functional as of golangci-lint v1.39.0.
- # See https://github.com/atc0005/go-ci/issues/302 for more information.
- - maligned
  - nakedret
  - prealloc
  - exportloopref
@@ -41,10 +37,6 @@ linters-settings:
  # minimal code complexity to report, 30 by default (but we recommend 10-20)
  min-complexity: 15
 
- maligned:
- # print struct with more effective memory layout or not, false by default
- suggest-new: true
-
  nakedret:
  # make an issue if func has more lines of code than this setting and it has naked returns; default is 30
  max-func-lines: 2