Update .golangci.yml

Author: SevenEarth

.golangci.yml

@@ -10,17 +10,14 @@ issues:
 linters:
   disable-all: true
   enable:
-    - deadcode
     - errcheck
     - gofmt
     - gosimple
     - ineffassign
     - misspell
     - staticcheck
-    - structcheck
     - unconvert
     - unused
-    - varcheck
     - vet
 
 linters-settings:
@@ -31,7 +28,7 @@ run:
   modules-download-mode: vendor
   timeout: 60m
   # The default concurrency value is the number of available CPU.
-  concurrency: 12
+  concurrency: 2
   # Allow multiple parallel golangci-lint instances running.
   # If false (default) - golangci-lint acquires file lock on start.
   allow-parallel-runners: true