Reorder and optimize dependencies between modules and libraries

- drop 'kotlin-runtime' and other dependencies which are exported by
  other modules ('util' and 'util.runtime' in case of 'kotlin-runtime')
- make all Kotlin modules from the compiler depend on 'util' for clarity
- put 'util' and 'util.runtime' to the bottom of the list everywhere: when
  kotlin-runtime gets reflection, classes from core/ should have higher
  priority than their previous versions from kotlin-runtime.jar

core/descriptor.loader.java/descriptor.loader.java.iml

@@ -11,6 +11,5 @@
     <orderEntry type="module" module-name="serialization.jvm" />
     <orderEntry type="library" name="javax.inject" level="project" />
     <orderEntry type="module" module-name="util.runtime" />
-    <orderEntry type="library" name="protobuf-java" level="project" />
   </component>
 </module>