Remove dead-code runtime hash() methods.

ScalaRunTime had a bunch of overloads of the `hash()` method,
but only the `Any` version is ever used by the codegen. Worse,
their implementation was not in sync with the actual
implementations in BoxesRunTime, called by the `Any` version.
For example,
  hash(0x80000000L) != hash(0x80000000L: Any)

This commit simply removes all of this dead code.
Similarly, we remove BoxesRunTime.hashFromObject(), which was
never called either.

1 files changed, 0 insertions, 4 deletions

diff --git a/test/instrumented/library/scala/runtime/BoxesRunTime.java b/test/instrumented/library/scala/runtime/BoxesRunTime.java
index 57799bd9b1..05ce2941a8 100644
--- a/test/instrumented/library/scala/runtime/BoxesRunTime.java
+++ b/test/instrumented/library/scala/runtime/BoxesRunTime.java
@@ -278,10 +278,6 @@ public final class BoxesRunTime
       else if (n instanceof java.lang.Float) return hashFromFloat((java.lang.Float)n);
       else return n.hashCode();
     }
-    public static int hashFromObject(Object a) {
-      if (a instanceof Number) return hashFromNumber((Number)a);
-      else return a.hashCode();
-    }
 
     private static int unboxCharOrInt(Object arg1, int code) {
       if (code == CHAR)