[REF] crm: removed unused Next Activities action

The action was not used anymore after removing action menu on
https://github.com/odoo/odoo/commit/ea66192276921be1bafe73255fa77c55f3e10ac7#diff-14cac61c7c687d0e5f4eeeb3edeb4b4aL896-L902



closes odoo/odoo#35315

Signed-off-by: Martin Geubelle (mge) <mge@openerp.com>

addons/crm/views/crm_lead_views.xml

@@ -1124,33 +1124,6 @@ if record:
             name="CRM"
             action="action_your_pipeline"/>
 
-        <!-- Next Activities Menu -->
-        <record id="crm_lead_action_activities" model="ir.actions.act_window">
-            <field name="name">Next Activities</field>
-            <field name="type">ir.actions.act_window</field>
-            <field name="res_model">crm.lead</field>
-            <field name="view_mode">tree,form,kanban,calendar,pivot,graph</field>
-            <field name="search_view_id" ref="crm.view_crm_case_opportunities_filter"/>
-            <field name="view_ids"
-                   eval="[(5, 0, 0), (0, 0, {'view_mode': 'tree', 'view_id': ref('crm_lead_view_tree_activity')}),
-                          (0, 0, {'view_mode': 'form', 'view_id': ref('crm_case_form_view_oppor')}),
-                          (0, 0, {'view_mode': 'kanban'}), (0, 0, {'view_mode': 'calendar'}), (0, 0, {'view_mode': 'pivot'}), (0, 0, {'view_mode': 'graph'})]"/>
-            <field name="domain">[('activity_ids.user_id', '=', uid), ('type','=','opportunity'), ('activity_date_deadline', '!=', False)]</field>
-            <field name="context">{
-                    'default_type': 'opportunity',
-                    'default_user_id': uid
-                }
-            </field>
-            <field name="help" type="html">
-                <p class="o_view_nocontent_empty_folder">
-                    No next activity
-                </p><p>
-                   Here is the list of your next activities. Those are linked to your opportunities.
-                   To set a next activity, go on an opportunity and add one. It will then appear in this list.
-                </p>
-            </field>
-        </record>
-
         <!-- Configuration/Lead & Opporotunities/Lead Tags Menu -->
         <record id="crm_lead_tag_action" model="ir.actions.act_window">
             <field name="name">Tags</field>