Various dependency updates

build.gradle

@@ -14,10 +14,8 @@ buildscript {
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
 
-        //Firebase (EH)
-        classpath 'com.google.gms:google-services:3.0.0'
         //Realm (EH)
-        classpath "io.realm:realm-gradle-plugin:5.0.1"
+        classpath "io.realm:realm-gradle-plugin:5.2.0"
     }
 }