Delete JvmClassName.getDescriptor()

It shouldn't be available in descriptor.loader.java, since it wouldn't depend
on ASM and its descriptors won't make any sense there. Most of the places where
this method was used were in codegen. The few exceptions are reading
annotations for compiled Kotlin classes by ASM visitors, but that will be
abstracted away soon

core/descriptor.loader.java/src/org/jetbrains/jet/lang/resolve/java/JvmClassName.java

@@ -81,7 +81,6 @@ public class JvmClassName {
 
     private final String internalName;
     private FqName fqName;
-    private String descriptor;
     private Type asmType;
 
     private JvmClassName(@NotNull String internalName) {
@@ -101,18 +100,10 @@ public class JvmClassName {
         return internalName;
     }
 
-    @NotNull
-    public String getDescriptor() {
-        if (descriptor == null) {
-            descriptor = "L" + internalName + ';';
-        }
-        return descriptor;
-    }
-
     @NotNull
     public Type getAsmType() {
         if (asmType == null) {
-            asmType = Type.getType(getDescriptor());
+            asmType = Type.getType("L" + internalName + ';');
         }
         return asmType;
     }