[REM] theme_common: remove dead compatibility asset files

Commit [1] made a mistake when moving compatibility assets: it created
a XML file for them but forgot to link it in the manifest, making it be
dead code. This was done in version 14.X. Upgrade scripts might have
treated the existing file additions (via views) as custom code and
converted them but none should be linked to this code anymore. It was
compatibility code meant to be removed at some point anyway.

Let's just remove the file, and their related asset files. Note that an
ir.asset mentioned `/static/src/old_snippets/s_animated_boxes/000.js`
but that file was already not even present in the repo (anymore?).

[1]: 84ba083

Related to task-2963840
Also see task-3696867

closes #1179

Related: odoo/odoo#235226
Related: odoo/enterprise#99233
Related: odoo/documentation#15239
Signed-off-by: Quentin Smetz (qsm) <[email protected]>

Author: qsm-odoo

theme_common/data/ir_asset.xml

@@ -5,11 +5,4 @@ class ThemeUtils(models.AbstractModel):
     _inherit = 'theme.utils'
 
     def _theme_common_post_copy(self, mod):
-        # Reset all default color when switching themes
-        self.disable_asset('theme_common.option_colors_02_variables')
-        self.disable_asset('theme_common.option_colors_03_variables')
-        self.disable_asset('theme_common.option_colors_04_variables')
-        self.disable_asset('theme_common.option_colors_05_variables')
-        self.disable_asset('theme_common.option_colors_06_variables')
-        self.disable_asset('theme_common.option_colors_07_variables')
-        self.disable_asset('theme_common.option_colors_08_variables')
+        pass