Fix iOS perf test workflow

.github/workflows/ios-perf.yml

@@ -44,9 +44,6 @@ jobs:
       - run:
           pip3 install requests
 
-      - name: Install Cocoapods
-        run: gem install cocoapods
-
       - name: Make build dir
         run: mkdir ddp
 
@@ -58,9 +55,6 @@ jobs:
       - name: Copy test_resources
         run: ./copy_test_resources.sh
 
-      - name: Run Cocoapods
-        run: pod install
-
       - name: Inject AccessKey
         run: sed -i '.bak' 's:{TESTING_ACCESS_KEY_HERE}:${{secrets.PV_VALID_ACCESS_KEY}}:'
           PerformanceTest/PerformanceTest.swift
@@ -76,7 +70,7 @@ jobs:
       - name: XCode Build
         run: xcrun xcodebuild build-for-testing
           -configuration Debug
-          -workspace PorcupineAppTest.xcworkspace
+          -project PorcupineAppTest.project
           -sdk iphoneos
           -scheme PerformanceTest
           -derivedDataPath ddp