gradlew-fdroid: fix multiple gradle-wrapper.properties parsing
gradlew-fdroid: fix multiple gradle-wrapper.properties parsing

Stop looking for the Gradle version if we found it via distributionUrl
in ./gradle/wrapper/gradle-wrapper.properties. If we go on to parsing
../gradle/wrapper/gradle-wrapper.properties, we'll erroneously get the
version from there.

fdroidtravis/fdroidserver,f-droid/fdroid-server,f-droid/fdroid-server,fdroidtravis/fdroidserver,f-droid/fdroidserver,f-droid/fdroidserver,fdroidtravis/fdroidserver,fdroidtravis/fdroidserver,f-droid/fdroidserver,f-droid/fdroidserver,f-droid/fdroid-server,f-droid/fdroidserver,f-droid/fdroid-server,f-droid/fdroid-server