Remove unused import

Author: RedNesto

src/main/kotlin/util/utils.kt

@@ -16,7 +16,6 @@ import com.intellij.openapi.application.ApplicationManager
 import com.intellij.openapi.application.ModalityState
 import com.intellij.openapi.application.runReadAction
 import com.intellij.openapi.command.WriteCommandAction
-import com.intellij.openapi.fileEditor.FileDocumentManager
 import com.intellij.openapi.module.Module
 import com.intellij.openapi.module.ModuleManager
 import com.intellij.openapi.progress.ProcessCanceledException