!4985 修改storagestatisticsjstest下BUILD.gn

Merge pull request !4985 from raoxian/master

storage/storagestatisticsjstest/BUILD.gn

@@ -15,7 +15,6 @@ import("//test/xts/tools/build/suite.gni")
 
 ohos_js_hap_suite("storagestatistics_js_test") {
   hap_profile = "entry/src/main/module.json"
-  js_build_mode = "debug"
   deps = [
     ":storagestatistics_js_assets",
     ":storagestatistics_resources",