Simple Blender add-on to allow deleting any mesh component without questions asked.

delete_any_components.py

# 2015.10
# 2020.6 
# 2021.1 - Sami S.

# License:
# This script is “free as in beer” i.e.
# feel free to use this script in Blender any way you like.
# However, do not re-distribute the script - share a link to my page instead!


# How to install:
#   Copy this file's content into some file with .py suffix.
#   In Blender, open Preferences (Shift + P)
#   Select Add-ons tab
#   Press 'Install...'
#   Browse to and select this file
#   Press 'Install Add-on' button

#   Press 'Community' filter button
#   Check 'Delete Any Components' to enable the add-on

# How to add a keyboard shortcut:
#   NOTE: DO THIS ONLY IF automatic adding of 
#   keyboard shortcut is disabled in script file below!

#   Go to Preferences (Shift + P)
#   Go to Keymap tab and browse to > 3D View > 3D View (Global) >
#   Scroll to the end of this folder and press '+ Add a new entry' button

#   Fill/paste the following string to the "Identifier of Operator" field: object.ss_delete_any_components
#   Assign a key (Delete), operation (Press) and modifier key(s) (Shift)

#   Save preferences: Bottom left hamburger icon > Save Preferences
#   Script is ready for use!

# How to use:
#   Use script in 3D View / mesh edit mode to delete a selection of any component type
#   Select components and press the shortcut key
#   NOTE: does not work in multi-component select mode


import bpy
import rna_keymap_ui
from bpy.types import Operator

bl_info = {
    "name": "Delete Any Components",
    "author": "Sami S.",
    "version": (1, 1),
    "blender": (2, 80, 0),
    "location": "Mesh Edit mode, Shift + Delete",
    "description": "Indiscriminately delete any selected mesh components",
    "category": "Object"
}

class OBJECT_OT_delete_any_component(bpy.types.Operator):
    bl_idname = "object.ss_delete_any_components"
    bl_label = "Delete Any Components"
    # bl_options = {"UNDO"}

    # invoke
    def execute(self, context): 
        if bpy.context.selected_objects.count != 0 and bpy.context.object.type == 'MESH':            
          
            if bpy.context.mode == 'EDIT_MESH':
                #Get edit_mode
                em = bpy.context.tool_settings.mesh_select_mode[:]
                
                # Vertex mode
                if em == (True, False, False):
                    bpy.ops.mesh.delete(type='VERT')
                
                # Edge mode
                if em == (False, True, False):
                    bpy.ops.mesh.delete(type='EDGE')
            
                # Face mode
                if em == (False, False, True):
                    bpy.ops.mesh.delete(type='FACE')
        
        return {"FINISHED"}



# Registration
addon_keymaps = []

def register():
    bpy.utils.register_class(OBJECT_OT_delete_any_component)
        
    wm = bpy.context.window_manager
    kc = wm.keyconfigs.addon
    if kc:
        km = kc.keymaps.new(name='3D View', space_type='VIEW_3D')
        kmi = km.keymap_items.new("object.ss_delete_any_components", type='DEL', value='PRESS', shift=True)    
        addon_keymaps.append((km, kmi))
          
            
def unregister():
    bpy.utils.unregister_class(OBJECT_OT_delete_any_component)

    for km,kmi in addon_keymaps:
        km.keymap_items.remove(kmi)
    addon_keymaps.clear()

        
if __name__ == "__main__":
    register()