Remove build-rust-doc job

Remove this job until upstream is fixed:
rust-lang/rust#82284

.gitlab-ci.yml

@@ -463,30 +463,6 @@ build-macos-subkey:
   tags:
     - osx
 
-build-rust-doc:
-  stage:                           build
-  <<:                              *docker-env
-  <<:                              *test-refs
-  needs:
-    - job:                         test-linux-stable
-      artifacts:                   false
-  variables:
-    <<:                            *default-vars
-    RUSTFLAGS:                     -Dwarnings
-  artifacts:
-    name:                          "${CI_JOB_NAME}_${CI_COMMIT_REF_NAME}-doc"
-    when:                          on_success
-    expire_in:                     7 days
-    paths:
-    - ./crate-docs/
-  script:
-    - rm -f ./crate-docs/index.html # use it as an indicator if the job succeeds
-    - SKIP_WASM_BUILD=1 RUSTDOCFLAGS="--html-in-header $(pwd)/.maintain/rustdoc-header.html"
-        time cargo +nightly doc --no-deps --workspace --all-features --verbose
-    - mv ./target/doc ./crate-docs
-    - echo "<meta http-equiv=refresh content=0;url=sc_service/index.html>" > ./crate-docs/index.html
-    - sccache -s
-
 #### stage:                        publish
 
 .build-push-docker-image:          &build-push-docker-image