Remove stale clippy installations. (#532)

.github/workflows/ci.yml

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c6ebc0c..bea902e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -158,7 +158,6 @@
         uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ env.RUST_STABLE_VER }}
-          components: clippy
 
       - name: install native dependencies
         if: matrix.os == 'ubuntu-latest'
@@ -193,7 +192,6 @@
         with:
           toolchain: ${{ env.RUST_STABLE_VER }}
           targets: wasm32-unknown-unknown
-          components: clippy
 
       # TODO: Find a way to make tests work. Until then the tests are merely compiled.
       - name: cargo test compile