diff --git a/app/models/assignment_team.rb b/app/models/assignment_team.rb
index 2bf8e6815..a2d991f93 100644
--- a/app/models/assignment_team.rb
+++ b/app/models/assignment_team.rb
@@ -5,7 +5,6 @@ class AssignmentTeam < Team
   include ReviewAggregator
   # Each AssignmentTeam must belong to a specific assignment
   belongs_to :assignment, class_name: 'Assignment', foreign_key: 'parent_id'
-  has_many :review_mappings, class_name: 'ReviewResponseMap', foreign_key: 'reviewee_id'
   has_many :review_response_maps, foreign_key: 'reviewee_id'
   has_many :responses, through: :review_response_maps, foreign_key: 'map_id'
 
@@ -115,45 +114,7 @@ def has_submissions?
   # Computes the average review grade for an assignment team.
   # This method aggregates scores from all ReviewResponseMaps (i.e., all reviewers of the team).
   def aggregate_review_grade
-    compute_average_review_score(review_mappings)
-  end
-  
-  # Adds a participant to this team.
-  # - Update the participant's team_id (so their direct reference is consistent)
-  # - Ensure there is a TeamsParticipant join record connecting the participant and this team
-  def add_participant(participant)
-    # need to have a check if the team is full then it can not add participant to the team
-    raise TeamFullError, "Team is full." if full?
-
-    # Update the participant's team_id column - will remove the team reference inside participants table later. keeping it for now
-    # participant.update!(team_id: id)
-
-    # Create or reuse the join record to maintain the association
-    TeamsParticipant.find_or_create_by!(participant_id: participant.id, team_id: id, user_id: participant.user_id)
-  end
-
-  # Removes a participant from this team.
-  # - Delete the TeamsParticipant join record
-  # - if the participant sent any invitations while being on the team, they all need to be retracted
-  # - If the team has no remaining members, destroy the team itself
-  def remove_participant(participant)
-    # retract all the invitations the participant sent (if any) while being on the this team
-    participant.retract_sent_invitations
-
-    # Remove the join record if it exists
-    tp = TeamsParticipant.find_by(team_id: id, participant_id: participant.id)
-    tp&.destroy
-    
-    # Update the participant's team_id column - will remove the team reference inside participants table later. keeping it for now
-    # participant.update!(team_id: nil)
-
-    # If no participants remain after removal, delete the team
-    destroy if participants.empty?
-  end
-
-  # Get the review response map
-  def review_map_type
-    'ReviewResponseMap'
+    compute_average_review_score(review_response_maps)
   end
   
   # Adds a participant to this team.
@@ -186,25 +147,6 @@ def remove_participant(participant)
     # participant.update!(team_id: nil)
   end
 
-  # Use current object (AssignmentTeam) as reviewee and create the ReviewResponseMap record
-  def assign_reviewer(reviewer)
-    assignment = Assignment.find(parent_id)
-    raise 'The assignment cannot be found.' if assignment.nil?
-
-    ReviewResponseMap.create(reviewee_id: id, reviewer_id: reviewer.get_reviewer.id, reviewed_object_id: assignment.id, team_reviewing_enabled: assignment.team_reviewing_enabled)
-  end
-
-  # Whether the team has submitted work or not
-  def has_submissions?
-    submitted_files.any? || submitted_hyperlinks.present?
-  end
-
-  # Computes the average review grade for an assignment team.
-  # This method aggregates scores from all ReviewResponseMaps (i.e., all reviewers of the team).
-  def aggregate_review_grade
-    compute_average_review_score(review_mappings)
-  end
-
   protected
 
   # Validates if a user is eligible to join the team
@@ -224,4 +166,4 @@ def validate_assignment_team_type
   end
 end 
 
-class TeamFullError < StandardError; end
\ No newline at end of file
+class TeamFullError < StandardError; end