fix: 删除重名方法，使用typescript在ios8下会报错

index.js

@@ -289,7 +289,6 @@
                         }
                     }, a
                 }())
-            }, getLocation: function (a) {
             }, previewImage: function (a) {
                 c(p.previewImage, {current: a.current, urls: a.urls}, a)
             }, uploadImage: function (a) {
@@ -464,4 +463,4 @@
             }
         }, !0), b && (a.wx = a.jWeixin = I), I
     }
-});
+});