Bug 1649046 - Update WNP locales list for 79. r=Callek

Differential Revision: https://phabricator.services.mozilla.com/D84168

browser/config/whats_new_page.yml

@@ -18,49 +18,28 @@
       # This is done by taskgraph.
       versions: ["<{version.major_number}.0"]
       locales:
-          - cak
-          - cs
           - cy
-          - da
           - de
           - dsb
-          - el
           - en-CA
           - en-GB
           - en-US
           - es-AR
-          - es-CL
-          - es-ES
-          - es-MX
-          - fi
           - fr
           - fy-NL
-          - gn
           - he
-          - hi-IN
           - hsb
-          - hu
-          - hy-AM
           - ia
           - id
           - it
-          - ja
           - ka
           - kab
-          - lij
-          - ms
           - nb-NO
           - nl
           - nn-NO
-          - pa-IN
           - pl
           - pt-BR
-          - pt-PT
-          - ru
-          - sk
           - sl
-          - sq
-          - sr
           - sv-SE
           - tr
           - uk