Remove old linters and config workaround

.golangci.yml

@@ -1,9 +1,6 @@
 linters-settings:
   errcheck:
     check-type-assertions: true
-    # https://github.com/golangci/golangci-lint/pull/4734.
-    # Remove when upgrading to next golangci-lint release.
-    ignore: ""
   forbidigo:
     forbid:
       - '^fmt\.Print'
@@ -30,31 +27,21 @@ linters:
   enable-all: true
   disable:
     - cyclop            # covered by gocyclo
-    - deadcode          # abandoned
     - depguard          # newer versions require explicit config to depend on anything outside of the Go stdlib
     - execinquery       # deprecated by author
-    - exhaustivestruct  # replaced by exhaustruct
     - funlen            # rely on code review to limit function length
     - gocognit          # dubious "cognitive overhead" quantification
     - gofumpt           # prefer standard gofmt
     - goimports         # rely on gci instead
-    - golint            # deprecated by Go team
     - gomnd             # replaced by mnd
-    - ifshort           # deprecated by author
     - inamedparam       # convention is not followed
-    - interfacer        # deprecated by author
     - ireturn           # "accept interfaces, return structs" isn't ironclad
     - lll               # don't want hard limits for line length
     - maintidx          # covered by gocyclo
-    - maligned          # readability trumps efficient struct packing
     - mnd               # some unnamed constants are okay
     - nlreturn          # generous whitespace violates house style
     - nonamedreturns    # named returns are fine; it's *bare* returns that are bad
-    - nosnakecase       # deprecated in https://github.com/golangci/golangci-lint/pull/3065
-    - scopelint         # deprecated by author
-    - structcheck       # abandoned
     - testpackage       # internal tests are fine
-    - varcheck          # abandoned
     - wrapcheck         # don't _always_ need to wrap errors
     - wsl               # generous whitespace violates house style
 issues: