Fix T89310: Industry Compatible keymap not working

Caused by improper testing on my part, assuming a helper function
existed in the industry compatible keymap file, and also assuming it
also used the N and T keys for the left and right side-regions.

release/scripts/presets/keyconfig/keymap_data/industry_compatible_data.py

@@ -2144,23 +2144,6 @@ def km_clip_dopesheet_editor(_params):
     return keymap
 
 
-def km_spreadsheet_generic(_params):
-    items = []
-    keymap = (
-        "Spreadsheet Generic",
-        {"space_type": 'SPREADSHEET', "region_type": 'WINDOW'},
-        {"items": items},
-    )
-
-    items.extend([
-        *_template_space_region_type_toggle(
-            sidebar_key={"type": 'N', "value": 'PRESS'},
-        ),
-    ])
-
-    return keymap
-
-
 # ------------------------------------------------------------------------------
 # Animation
 
@@ -4084,7 +4067,6 @@ def generate_keymaps_impl(params=None):
         km_image(params),
         km_node_generic(params),
         km_node_editor(params),
-        km_spreadsheet_generic(params),
         km_info(params),
         km_file_browser(params),
         km_file_browser_main(params),