bug fix

Signed-off-by: Nzhangxinyue <zhangxinyue38@huawei.com>

arkui/ace_ets_component/entry/src/main/ets/MainAbility/pages/global.ets

@@ -40,7 +40,6 @@ struct GlobalExample {
           this.testImageBitmapSize();
           this.testOffscreenCanvas();
           this.testImageData();
-          this.testImage();
         })
     }.width('100%').height('100%')
   }
@@ -66,14 +65,4 @@ struct GlobalExample {
     console.log("imageData_width=" + imageData.width);
     console.log("imageData_height=" + imageData.height);
   }
-
-  testImage() {
-    var image = this.offContext.drawImage(this.img, 0, 0, 100, 100)
-      .onload(() => {
-      })
-      .onerror(() => {
-      });
-    console.log("img_width=" + img.width);
-    console.log("img_height=" + img.height);
-  }
 }
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