Documenation states:
The following macros are all equivalent, because they have the same context: {$MACRO:A}, {$MACRO: A} and {$MACRO:"A"}.

However this is not fully taken into account when trying to mass-remove matching macros from hosts or templates via mass update.

Steps to reproduce:

• Add {$MACRO:"abc"} to some host or template, {$MACRO: abc} for another.
• From the list, mark the hosts and click on "Mass update".
• Enter {$MACRO:abc} to be removed, click "Update".

Result:
Macros were not removed.

Expected:
Macros removed, no matter the saved or entered context syntax variation.