Removed unnecessary singingConfig from build.gradle
Removed unnecessary singingConfig from build.gradle

flipreverse/syncthing-android,jmintb/syncthing-android,wweich/syncthing-android,begetan/syncthing-android,begetan/syncthing-android,syncthing/syncthing-android,syncthing/syncthing-android,flipreverse/syncthing-android,Nutomic/syncthing-android,Nutomic/syncthing-android,wweich/syncthing-android,jmintb/syncthing-android,syncthing/syncthing-android