Revert "update all connectors for new CDK version and more stringent javac checks"

This reverts commit 18ad87bbd1.

airbyte-integrations/connectors/destination-postgres/build.gradle

@@ -26,11 +26,3 @@ dependencies {
 
     integrationTestJavaImplementation libs.testcontainers.postgresql
 }
-
-//This is only needed because we're using some pre 0.3 version of the CDK
-java {
-     compileJava {
-        options.compilerArgs.remove("-Werror")
-     }
-}
-