refactor(architecture): remove layered architecture provider

Deleted `LayeredArchProvider` and `JavaLayeredArchProvider` files, and removed related extension points and configurations. Cleaned up unused imports in `SimpleDevinPrompter.kt`.

Author: phodal

core/src/223/main/resources/META-INF/autodev-core.xml

@@ -151,10 +151,6 @@
                         interface="cc.unitmesh.devti.provider.DevFlowProvider"
                         dynamic="true"/>
 
-        <extensionPoint qualifiedName="cc.unitmesh.layeredArchProvider"
-                        interface="cc.unitmesh.devti.provider.architecture.LayeredArchProvider"
-                        dynamic="true"/>
-
         <!-- TODO: find better way to share context -->
         <extensionPoint qualifiedName="cc.unitmesh.contextPrompter"
                         interface="cc.unitmesh.devti.provider.ContextPrompter"

core/src/233/main/resources/META-INF/autodev-core.xml

@@ -153,10 +153,6 @@
                         interface="cc.unitmesh.devti.provider.DevFlowProvider"
                         dynamic="true"/>
 
-        <extensionPoint qualifiedName="cc.unitmesh.layeredArchProvider"
-                        interface="cc.unitmesh.devti.provider.architecture.LayeredArchProvider"
-                        dynamic="true"/>
-
         <!-- TODO: find better way to share context -->
         <extensionPoint qualifiedName="cc.unitmesh.contextPrompter"
                         interface="cc.unitmesh.devti.provider.ContextPrompter"

core/src/main/kotlin/cc/unitmesh/devti/prompting/SimpleDevinPrompter.kt

@@ -8,9 +8,7 @@ import cc.unitmesh.devti.provider.context.ChatCreationContext
 import cc.unitmesh.devti.provider.context.ChatOrigin
 import cc.unitmesh.devti.provider.devins.LanguagePromptProcessor
 import cc.unitmesh.devti.template.TemplateRender
-import com.intellij.openapi.application.runReadAction
 import com.intellij.openapi.editor.Editor
-import com.intellij.openapi.fileEditor.FileDocumentManager
 import com.intellij.openapi.fileEditor.FileEditorManager
 import com.intellij.openapi.project.Project
 import com.intellij.psi.PsiDocumentManager

core/src/main/kotlin/cc/unitmesh/devti/provider/architecture/LayeredArchProvider.kt

@@ -56,9 +56,6 @@
                 language="JAVA"
                 implementationClass="cc.unitmesh.idea.provider.JavaCustomPromptProvider"/>
 
-        <layeredArchProvider
-                implementation="cc.unitmesh.idea.provider.JavaLayeredArchProvider"/>
-
         <relatedClassProvider
                 language="JAVA"
                 implementationClass="cc.unitmesh.idea.provider.JavaRelatedClassesProvider" />