Remove third_party/golang.org/x/mobile as it is no longer used with Go 1.5.

third_party/go/src/golang.org/x/mobile/bind/testdata/interfaces.java.golden

-// Java Package interfaces is a proxy for talking to a Go program.
-//   gobind -lang=java interfaces
-//
-// File is generated by gobind. Do not edit.
-package go.interfaces;
-
-import go.Seq;
-
-public abstract class Interfaces {
-    private Interfaces() {} // uninstantiable
-    
-    public static int Add3(I r) {
-        go.Seq _in = new go.Seq();
-        go.Seq _out = new go.Seq();
-        int _result;
-        _in.writeRef(r.ref());
-        Seq.send(DESCRIPTOR, CALL_Add3, _in, _out);
-        _result = _out.readInt32();
-        return _result;
-    }
-    
-    public interface I extends go.Seq.Object {
-        public int Rand();
-        
-        public static abstract class Stub implements I {
-            static final String DESCRIPTOR = "go.interfaces.I";
-            
-            private final go.Seq.Ref ref;
-            public Stub() {
-                ref = go.Seq.createRef(this);
-            }
-            
-            public go.Seq.Ref ref() { return ref; }
-            
-            public void call(int code, go.Seq in, go.Seq out) {
-                switch (code) {
-                case Proxy.CALL_Rand: {
-                    int result = this.Rand();
-                    out.writeInt32(result);
-                    return;
-                }
-                default:
-                    throw new RuntimeException("unknown code: "+ code);
-                }
-            }
-        }
-        
-        static final class Proxy implements I {
-            static final String DESCRIPTOR = Stub.DESCRIPTOR;
-        
-            private go.Seq.Ref ref;
-        
-            Proxy(go.Seq.Ref ref) { this.ref = ref; }
-        
-            public go.Seq.Ref ref() { return ref; }
-        
-            public void call(int code, go.Seq in, go.Seq out) {
-                throw new RuntimeException("cycle: cannot call proxy");
-            }
-        
-            public int Rand() {
-                go.Seq _in = new go.Seq();
-                go.Seq _out = new go.Seq();
-                int _result;
-                _in.writeRef(ref);
-                Seq.send(DESCRIPTOR, CALL_Rand, _in, _out);
-                _result = _out.readInt32();
-                return _result;
-            }
-            
-            static final int CALL_Rand = 0x10a;
-        }
-    }
-    
-    public static I Seven() {
-        go.Seq _in = new go.Seq();
-        go.Seq _out = new go.Seq();
-        I _result;
-        Seq.send(DESCRIPTOR, CALL_Seven, _in, _out);
-        _result = new I.Proxy(_out.readRef());
-        return _result;
-    }
-    
-    private static final int CALL_Add3 = 1;
-    private static final int CALL_Seven = 2;
-    private static final String DESCRIPTOR = "interfaces";
-}