build: remove redundant exclusion of Gradle task signMavenJavaPublication (#1568)

Author: valfirst

.github/workflows/gradle.yml

@@ -22,4 +22,4 @@ jobs:
         java-version: 8
         cache: 'gradle'
     - name: Build with Gradle
-      run: ./gradlew clean build -x signMavenJavaPublication -x test -x checkstyleTest
+      run: ./gradlew clean build -x test -x checkstyleTest

azure-pipelines.yml

@@ -42,7 +42,7 @@ jobs:
       jdkArchitectureOption: 'x64'
       publishJUnitResults: true
       tasks: 'build'
-      options: 'uiAutomationTest -x checkstyleTest -x test -x signMavenJavaPublication'
+      options: 'uiAutomationTest -x checkstyleTest -x test'
 - job: iOS_E2E_Tests
 #  timeoutInMinutes: '90'
   steps:
@@ -60,4 +60,4 @@ jobs:
       jdkArchitectureOption: 'x64'
       publishJUnitResults: true
       tasks: 'build'
-      options: 'xcuiTest -x checkstyleTest -x test -x signMavenJavaPublication'
+      options: 'xcuiTest -x checkstyleTest -x test'