remove extra steps in github actions

Author: mikhailChelbaev

.github/workflows/swiftlint.yml

@@ -12,17 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v1
-      - name: GitHub Action for SwiftLint
-        uses: norio-nomura/[email protected]
-      - name: GitHub Action for SwiftLint with --strict
+      - name: Run SwiftLint
         uses: norio-nomura/[email protected]
         with:
           args: --strict
-      - name: GitHub Action for SwiftLint (Only files changed in the PR)
-        uses: norio-nomura/[email protected]
-        env:
-          DIFF_BASE: ${{ github.base_ref }}
-      - name: GitHub Action for SwiftLint (Different working directory)
-        uses: norio-nomura/[email protected]
-        env:
-          WORKING_DIRECTORY: Source