chore: remove unused ai-translations env vars (#1204)

Author: BrandonHBodine

.env

@@ -39,7 +39,6 @@ HOTJAR_APP_ID=''
 HOTJAR_VERSION=6
 HOTJAR_DEBUG=false
 INVITE_STUDENTS_EMAIL_TO=''
-AI_TRANSLATIONS_BASE_URL=''
 ENABLE_HOME_PAGE_COURSE_API_V2=false
 ENABLE_CHECKLIST_QUALITY=''
 ENABLE_GRADING_METHOD_IN_PROBLEMS=false

.env.development

@@ -42,7 +42,6 @@ HOTJAR_APP_ID=''
 HOTJAR_VERSION=6
 HOTJAR_DEBUG=true
 INVITE_STUDENTS_EMAIL_TO="[email protected]"
-AI_TRANSLATIONS_BASE_URL='http://localhost:18760'
 ENABLE_HOME_PAGE_COURSE_API_V2=false
 ENABLE_CHECKLIST_QUALITY=true
 ENABLE_GRADING_METHOD_IN_PROBLEMS=false