Revert "Fix 'integTest' not called with test workflows during release (…

…opensearch-project#4814)"

This reverts commit a1816fb.

Signed-off-by: Derek Ho <dxho@amazon.com>

build.gradle

@@ -569,12 +569,6 @@ task integrationTest(type: Test) {
     }
 }
 
-tasks.named("integrationTest") {
-    minHeapSize = "512m"
-    maxHeapSize = "2g"
-}
-
-tasks.integTest.dependsOn(integrationTest)
 tasks.integrationTest.finalizedBy(jacocoTestReport) // report is always generated after integration tests run
 
 //run the integrationTest task before the check task