docs: move ngcc def from page to glossary (#34196)

PR Close #34196

.github/CODEOWNERS

@@ -468,7 +468,6 @@
 # ================================================
 
 /packages/compiler-cli/ngcc/**                                  @angular/fw-ngcc @angular/framework-global-approvers
-/aio/content/guide/ngcc.md                                      @angular/fw-ngcc @angular/framework-global-approvers
 
 
 

aio/content/guide/glossary.md

@@ -583,10 +583,10 @@ Compare to [NgModule](#ngmodule).
 
 {@a ngcc}
 
-## ngcc (Angular Compatability Compiler)
+## ngcc
 
-The CLI automatically runs the `ngcc` process to compile all your libraries with [Ivy](#ivy).
-If your app uses Ivy, but depends on libraries that don't use Ivy, `ngcc` automatically updates the dependent libraries to use Ivy when you compile your app.
+Angular compatability compiler.
+If you build your app using [Ivy](#ivy), but it depends on libraries have not been compiled with Ivy, the CLI uses `ngcc` to automatically update the dependent libraries to use Ivy.
 
 
 {@a ngmodule}

aio/content/navigation.json

@@ -754,11 +754,6 @@
           "title": "Usage Analytics",
           "tooltip": "For administrators, guide to gathering usage analytics from your users.",
           "url": "cli/usage-analytics-gathering"
-        },
-        {
-          "title": "ngcc",
-          "tooltip": "Description of the Angular Compatibility Compiler.",
-          "url": "guide/ngcc"
         }
       ]
     },