Remove explicit handling of q and page params

With the modal managed via turbo frame and turbo stream refresh,
all this custom explicit params management is not needed anymore.

admin/app/components/solidus_admin/stock_items/edit/component.rb

@@ -15,9 +15,4 @@ def title
  def form_id
  "#{stimulus_id}-#{dom_id(@stock_item)}"
  end
-
- def permitted_query_params
- return params[:q].permit! if params[:q].respond_to?(:permit)
- {}
- end
 end

admin/app/components/solidus_admin/stock_items/index/component.rb

@@ -167,11 +167,6 @@ def count_on_hand_column
  }
  end
 
- def permitted_query_params
- return params[:q].permit! if params[:q].respond_to?(:permit)
- {}
- end
-
  def turbo_frames
  %w[edit_stock_item_modal]
  end

admin/app/controllers/solidus_admin/stock_items_controller.rb

@@ -26,14 +26,11 @@ def edit
 
  def update
  quantity_adjustment = params[:quantity_adjustment].to_i
- @stock_item.assign_attributes(stock_item_params.except(:page, :q))
+ @stock_item.assign_attributes(stock_item_params)
  @stock_item.stock_movements.build(quantity: quantity_adjustment, originator: current_solidus_admin_user)
 
  if @stock_item.save
- redirect_to solidus_admin.stock_items_path(
- page: stock_item_params[:page].to_i.presence,
- q: stock_item_params[:q].presence&.then { |q| JSON.parse(q) }
- ), status: :see_other
+ redirect_to solidus_admin.stock_items_path, status: :see_other
  else
  respond_to do |format|
  format.html { render component('stock_items/edit').new(stock_item: @stock_item, page: @page), status: :unprocessable_entity }
@@ -61,7 +58,7 @@ def load_stock_item
  end
 
  def stock_item_params
- params.require(:stock_item).permit(:backorderable, :page, :q)
+ params.require(:stock_item).permit(:backorderable)
  end
  end
 end