refactor: remove Core plugin version checker logic (#6121)

Author: breedloj

plugins/core/jetbrains-community/resources/META-INF/aws.toolkit.core.xml

@@ -11,7 +11,6 @@
     </extensionPoints>
 
     <extensions defaultExtensionNs="com.intellij">
-        <applicationInitializedListener implementation="software.aws.toolkits.jetbrains.PluginVersionChecker"/>
         <httpRequestHandler implementation="software.aws.toolkits.jetbrains.core.credentials.sso.pkce.ToolkitOAuthCallbackHandler"/>
         <httpRequestHandler implementation="software.aws.toolkits.jetbrains.core.credentials.sso.pkce.ToolkitOAuthCallbackResultService"/>
 
@@ -81,9 +80,6 @@
         <registryKey key="aws.toolkit.notification.endpoint" description="Endpoint for AWS Toolkit notifications"
                      defaultValue="https://idetoolkits-hostedfiles.amazonaws.com/Notifications/Jetbrains/combined/2.x.json" restartRequired="true"/>
 
-
-        <notificationGroup id="aws.plugin.version.mismatch" displayType="STICKY_BALLOON" key="aws.settings.title"/>
-
         <webHelpProvider implementation="software.aws.toolkits.jetbrains.core.help.HelpIdTranslator"/>
     </extensions>
 

plugins/core/jetbrains-community/src-242/software/aws/toolkits/jetbrains/PluginVersionChecker.kt

@@ -1641,9 +1641,6 @@ notification.changelog=Changelog
 notification.expand=Expand
 notification.learn_more=Learn more
 notification.update=Update
-plugin.incompatible.fix=Disable incompatible plugins and restart IDE
-plugin.incompatible.message=The plugin versions for Amazon Q, AWS Toolkit, and AWS Toolkit Core must match or conflicts may occur.
-plugin.incompatible.title=AWS Plugin Incompatibility
 q.connection.disconnected=You don't have access to Amazon Q. Please authenticate to get started.
 q.connection.expired=Your Amazon Q session has timed out. Re-authenticate to continue.
 q.connection.invalid=You don't have access to Amazon Q. Please authenticate to get started.