ci: Remove redundant CI jobs

All those checks should be executed by `cargo-checkmate` anyway.

.woodpecker.yml

@@ -1,34 +1,10 @@
 pipeline:
-  fmt:
-    group: default
-    image: rust_full
-    commands:
-      - cargo fmt --all -- --check
-
-  clippy:
-    group: default
-    image: rust_full
-    commands:
-      - cargo clippy --all-features
-
-  doc:
-    group: default
-    image: rust_full
-    commands:
-      - cargo doc --all-features
-
   checkmate:
     group: default
     image: rust_full
     commands:
       - cargo checkmate
 
-  build:
-    group: default
-    image: rust_full
-    commands:
-      - cargo build --all-features
-
   build_release:
     group: default
     image: rust_full