Disable deprecated linters

varcheck, deadcode, and structcheck are deprecated since 1.49.0.

Signed-off-by: Stephen Kitt <[email protected]>

.golangci.yml

@@ -55,7 +55,6 @@ linters:
     - bodyclose
     - contextcheck
     # - cyclop # This is equivalent to gocyclo
-    - deadcode
     - depguard
     - dogsled
     - dupl
@@ -118,7 +117,6 @@ linters:
     # - scopelint # Deprecated since v1.39.0
     # - sqlclosecheck # We don't use SQL
     - staticcheck
-    - structcheck
     - stylecheck
     # - tagliatelle # Inconsistent with stylecheck and not as good
     # - tenv # Not relevant for our Ginkgo UTs
@@ -129,7 +127,6 @@ linters:
     - unconvert
     - unparam
     - unused
-    - varcheck
     # - varnamelen # It doesn't seem necessary to enforce a minimum variable name length
     - wastedassign
     - whitespace