remove pod invocations from workflows

Author: morganchen12

.github/workflows/core.yml

@@ -18,7 +18,6 @@ jobs:
         run: |
           cp .github/GoogleService-Info-CI.plist firoptions/FiroptionConfiguration/GoogleService-Info.plist
           cd firoptions
-          pod install --repo-update
           xcodebuild -workspace FiroptionConfiguration.xcworkspace clean build -scheme FiroptionConfiguration -destination "${destination}" CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO
         env: 
          destination: ${{ matrix.destination }}

.github/workflows/firestore.yml

@@ -18,7 +18,6 @@ jobs:
         run: |
           cp .github/GoogleService-Info-CI.plist firestore/swift/firestore-smoketest/GoogleService-Info.plist
           cd firestore/swift
-          pod install --repo-update
           xcodebuild -workspace firestore-smoketest.xcworkspace clean build -scheme firestore-smoketest -destination "${destination}" CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO
         env: 
          destination: ${{ matrix.destination }}
@@ -35,7 +34,6 @@ jobs:
         run: |
           cp .github/GoogleService-Info-CI.plist firestore/objc/GoogleService-Info.plist
           cd firestore/objc
-          pod install --repo-update
           xcodebuild -workspace firestore-smoketest-objc.xcworkspace clean build -scheme firestore-smoketest-objc -destination "${destination}" CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO
         env: 
          destination: ${{ matrix.destination }}

.github/workflows/installations.yml

@@ -17,7 +17,6 @@ jobs:
       - name: Build Swift snippets
         run: |
           cd installations/
-          pod install --repo-update
           xcodebuild -workspace InstallationsSnippets.xcworkspace clean build -scheme InstallationsSnippets -destination "${destination}" CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO
         env: 
          destination: ${{ matrix.destination }}