Revert to just using $:/tags/Macro for core macros

See #8683

core/wiki/macros/CSS.tid

@@ -1,5 +1,5 @@
 title: $:/core/macros/CSS
-tags: $:/tags/Macro $:/tags/Global
+tags: $:/tags/Macro
 
 <!-- Needs to stay that way for backwards compatibility. See GH issue: #8326 -->
 \define colour(name)

core/wiki/macros/copy-to-clipboard.tid

@@ -1,5 +1,5 @@
 title: $:/core/macros/copy-to-clipboard
-tags: $:/tags/Macro $:/tags/Global
+tags: $:/tags/Macro
 
 \whitespace trim
 

core/wiki/macros/diff.tid

@@ -1,5 +1,5 @@
 title: $:/core/macros/diff
-tags: $:/tags/Macro $:/tags/Global
+tags: $:/tags/Macro
 
 \whitespace trim
 

core/wiki/macros/export.tid

@@ -1,5 +1,5 @@
 title: $:/core/macros/export
-tags: $:/tags/Macro $:/tags/Global
+tags: $:/tags/Macro
 
 \function exportButtonFilename(baseFilename)
 [<baseFilename>] [<extension>] +[join[]]

core/wiki/macros/show-filter-count.tid

@@ -1,5 +1,5 @@
 title: $:/core/macros/show-filter-count
-tags: $:/tags/Macro $:/tags/Global
+tags: $:/tags/Macro
 
 \whitespace trim
 

core/wiki/macros/tag-picker.tid

@@ -1,5 +1,5 @@
 title: $:/core/macros/tag-picker
-tags: $:/tags/Macro $:/tags/Global
+tags: $:/tags/Macro
 first-search-filter: [subfilter<tagListFilter>!is[system]search:title<userInput>]
 second-search-filter: [subfilter<tagListFilter>is[system]search:title<userInput>]
 

core/wiki/macros/testcase.tid

@@ -1,5 +1,5 @@
 title: $:/core/macros/testcase
-tags: $:/tags/Macro $:/tags/Global
+tags: $:/tags/Macro
 
 \whitespace trim
 

core/wiki/macros/timeline.tid

@@ -1,4 +1,4 @@
-tags: $:/tags/Macro $:/tags/Global
+tags: $:/tags/Macro
 title: $:/core/macros/timeline
 
 <!-- Override one or both of the following two macros with a global or local macro of the same name