persistent keys with right service name, key and username.

Author: andxu

PluginsAndFeatures/azure-toolkit-for-intellij/resources/META-INF/plugin.xml

@@ -70,7 +70,6 @@
           id="Azure Activity Log"
           canCloseContents="true"
           icon="/icons/Common/AzureActivityLog.svg"/>
-    <applicationService serviceImplementation="com.microsoft.intellij.configuration.IdeaSecureStoreSettings"/>
     <projectConfigurable groupId="root"
                          id="com.microsoft.intellij.AzureConfigurable"
                          provider="com.microsoft.intellij.AzureConfigurableProvider"