[REM] theme_common: remove empty files and unreferenced files

This commit removes static files that are not referenced from an asset,
static files which are empty or only contain comments and
`primary_variables.scss` which only a never referenced variable.

task-3696867

Author: bso-odoo

theme_common/__manifest__.py

@@ -5,8 +5,5 @@
     'category': 'Hidden',
     'version': '1.1',
     'depends': ['website'],
-    'data': [
-        'data/data.xml',
-    ],
     'license': 'LGPL-3',
 }

theme_common/data/data.xml

@@ -65,18 +65,4 @@
     <field name="active" eval="False"/>
 </record>
 
-<record id="theme_common.primary_variables_scss" model="theme.ir.asset">
-    <field name="key">theme_common.primary_variables_scss</field>
-    <field name="name">Primary variables SCSS</field>
-    <field name="bundle">web._assets_primary_variables</field>
-    <field name="path">theme_common/static/src/scss/primary_variables.scss</field>
-</record>
-
-<record id="theme_common.fonts_scss" model="theme.ir.asset">
-    <field name="key">theme_common.fonts_scss</field>
-    <field name="name">Fonts SCSS</field>
-    <field name="bundle">web.assets_frontend</field>
-    <field name="path">theme_common/static/src/scss/fonts.scss</field>
-</record>
-
 </odoo>