T:  delete unused code (#3117)

diff --git a/android/sdk/src/main/java/org/apache/weex/performance/WXInstanceApm.java b/android/sdk/src/main/java/org/apache/weex/performance/WXInstanceApm.java
index 39d9019..42de1ea 100644
--- a/android/sdk/src/main/java/org/apache/weex/performance/WXInstanceApm.java
+++ b/android/sdk/src/main/java/org/apache/weex/performance/WXInstanceApm.java
@@ -335,7 +335,6 @@
         addProperty(KEY_PROPERTIES_ERROR_CODE, VALUE_ERROR_CODE_DEFAULT);
         addProperty(KEY_PAGE_PROPERTIES_JSLIB_VERSION, WXEnvironment.JS_LIB_SDK_VERSION);
         addProperty(KEY_PAGE_PROPERTIES_WEEX_VERSION, WXEnvironment.WXSDK_VERSION);
-        addProperty(KEY_PAGE_PROPERTIES_WEEX_VERSION, WXEnvironment.WXSDK_VERSION);
         addStats("wxReInitCount", WXBridgeManager.reInitCount);
         if (null != instance){
             addProperty(KEY_PAGE_PROPERTIES_UIKIT_TYPE, instance.getRenderType());