Remove unused Params.getAddress.

It was formerly used for the "broker" and "relay" query string
parameters, which were removed in
debe9c37.

proxy/spec/util.spec.js

@@ -244,33 +244,4 @@ describe('Params', function() {
 
   });
 
-  describe('address', function() {
-
-    var DEFAULT = {
-      host: '1.1.1.1',
-      port: 2222
-    };
-
-    var getAddress = function(query) {
-      return Params.getAddress(query, 'addr', DEFAULT);
-    };
-
-    it('parses correctly', function() {
-      expect(getAddress({})).toEqual(DEFAULT);
-      expect(getAddress({
-        addr: '3.3.3.3:4444'
-      })).toEqual({
-        host: '3.3.3.3',
-        port: 4444
-      });
-      expect(getAddress({
-        x: '3.3.3.3:4444'
-      })).toEqual(DEFAULT);
-      expect(getAddress({
-        addr: '---'
-      })).toBeNull();
-    });
-
-  });
-
 });

proxy/util.js

@@ -238,17 +238,6 @@ class Params {
     return Parse.byteCount(spec);
   }
 
-  // Get an object value and parse it as an address spec. Returns |defaultValue|
-  // if param is not a key. Returns null on a parsing error.
-  static getAddress(query, param, defaultValue) {
-    var val;
-    val = query[param];
-    if (void 0 === val) {
-      return defaultValue;
-    }
-    return Parse.address(val);
-  }
-
   // Get an object value and return it as a string. Returns default_val if param
   // is not a key.
   static getString(query, param, defaultValue) {