secrets: Drop charmhub_token

The charmhub_token was being used in the past to upload charms from
zosci, this task was took over by upstream zuul, this secret is no
longer needed

roles/publish-charm/tasks/main.yaml

@@ -1,7 +1,7 @@
 - name: Publish charms to charmhub
   when: publish_charm
   environment:
-    CHARMCRAFT_AUTH: "{{ charmhub_token.value }}"
+    CHARMCRAFT_AUTH: ""
   block:
     - name: Install docker
       include_role:

zuul.d/jobs.yaml

@@ -817,7 +817,6 @@
     run: playbooks/charm/publish.yaml
     secrets:
       - ps6_cloud
-      - charmhub_token
     nodeset:
       nodes:
         - name: focal-medium

zuul.d/secrets.yaml

@@ -142,30 +142,6 @@
         +PquwBxEjrO6g/Z/07wx2KTwPc1vPGY2oqfSG6N9CS7FruOJZzA+ZXX9KEDkN7RQ7ydTx
         PPVLln0767uKOREY3iC5lH8xncK8UpFk4UHvjGB+ILEM62O1Ie/W2fssvIhy0TIW69ixm
         yjOcJDBCHjYcqssJfraFHYHjkHP82LLoXBUs6HYPtKk63NlbVr0eI/AVTsT5eM=
-- secret:
-    name: charmhub_token
-    data:
-      value: !encrypted/pkcs1-oaep
-        - SxvjubfW5J7Fvrf9ULaIAiAYv2+hzW14PBoyYakwoyUiq5KA86dVHommDU2i2vuzKHFmd
-          6CnieXBTuMr9MaSKHhBCscDYUSq6dQn28tdVHo1MLIdTffqKvZhzNgb0Iw/RRDNUHzilI
-          guzrLY+6ced9rkiiBWwzlcuQ8rNMaM+Ml3C1mkT7EzooI5BXjn0vUOBXyVfIL7pyhlb8B
-          b96oy6D3HA/QX7wGtuKVi5d72fjy9cblQoMfmCVdLhgxJ1uXKu0CKZD1oxOvA32HEfa3m
-          BU+rJ83uJordd8/cFB7CS3m5vWRyHdd6zSU4CBuwGO1zJucgHlbBTwLsWER09ZvZDfUy4
-          Aq/jH851UDN9SysknU9yYboLsOWdAce9AE9aOcpKpIb8xX8AGZlQxaeYe8RQwChOIn7aS
-          P6TJZoJHTfF24lb99t6s0DkxVAu9Ya97W6Yha6tyLzSABjQ8s8k6Aw4n72nLI0LSZnoxi
-          Cb6fQ+jgmsr5V4oQspjHQBZtHpAfurWxhGQu/K6LsBAsO/HMlQcqU58WcXir1DP8WH1CJ
-          ckDLEehN3p3PNTKPv1Pqr4V/NmC0HnVv7+uBR8/IW8gnineDfyl/0GVUAr9fj3Wh2bHwn
-          8HOP2OIQgMqRyCXIBt+8jPLtLUCzlXi5HPxNY0XzsvKbMaZrGzNj5rNTGeKW8Y=
-        - p2Muujmo2xtFyoLNF1YBgJC34QU9vIIkBVdxrDEwybilDQuPZW0znksKsWZecqO8J9984
-          T548L+01b+nVktcM51R99ZvValmnikRGIc3nhlXsgztdczkKJ1PnSWEKzRM2NlTWqf7xR
-          vhhaemHXH+4r39IihfQPG78zkLetBBlUm61KhQcokAHcFkbm1uJBO0tHXZckY4yO6IdZ+
-          K9Q2UwrGHH/hjlygbQs1C++TxU3qvbow1JkbQRlsIlcEsi4MpgMP7oaLT6CQGq9G1viFk
-          5cmH/d0fnEZrfdiqcsJt2hpFfoGFre0ke1k3Sea8JpBX549TVZBcRtjO0BVjoxUxXgJ7Q
-          f0SwL/SULE/6SxpRKynz3o/4qs1qiygcebgjh2zXU9CJwxoKouZrj5bYTXi24BWT4yqui
-          UxLBsLAYqa9NW0jcp8l63gVAm+NMGkRfw5VPI5Vmhi/4pAfhpN0hLi/LhkBwcjcNKfGi1
-          oG5UgmSKhre5vkLgSqfxelkkvgVo4tXxDBWrT9fYfKj83Ee4TCZgEMnxanLmNznKHLEnu
-          oukpwXp5qgb8+0e21bXBtZkxzfK5IEHZk6XInf8PYUWA18go1UETrbAdtb8QX094HWD1G
-          6aAtCVUPfNStwkt+S4BxJctnIxN8M73GHiC42p2p4i+pYUVGSfLo1cAt3l9Jl8=
 - secret:
     name: sqalab_environment
     data: