chore: Remove duplicate quickBuild config

Author: lqiu96

.github/workflows/sdk-platform-java-dependency_compatibility_test.yaml

@@ -64,7 +64,7 @@ jobs:
       # Install the modules for showcase (Shared-Deps is required to run showcase)
       - name: Install sdk-platform-java's modules
         # gapic-generator-java requires Java 8 and is irrelevant for this CI
-        run: mvn -q -B -ntp install --projects '!gapic-generator-java' -PquickBuild -DskipTests -PquickBuild -T 1C
+        run: mvn -q -B -ntp install --projects '!gapic-generator-java' -PquickBuild -DskipTests -T 1C
         working-directory: sdk-platform-java
 
       # Set up local showcase server to run the showcase ITs

.github/workflows/sdk-platform-java-nightly.yaml

@@ -67,7 +67,7 @@ jobs:
           cache: maven
       - run: mvn -version
       - name: Install with Java 11
-        run: mvn install --errors --batch-mode --no-transfer-progress -PquickBuild -DskipTests -PquickBuild
+        run: mvn install --errors --batch-mode --no-transfer-progress -PquickBuild -DskipTests
 
       - uses: actions/setup-java@v5
         with: