CI: remove unnecessary hacks

Author: boozook

.github/workflows/ci.yaml

@@ -33,13 +33,13 @@ jobs:
     - name: Checkout repository
       uses: actions/checkout@v2
 
-    # We need to disable the existing toolchain to avoid updating rust-docs
-    # which takes a long time. The fastest way to do this is to rename the
-    # existing folder, as deleting it takes about as much time as not doing
-    # anything and just updating rust-docs.
-    - name: Rename existing rust toolchain (Windows)
-      if: matrix.os == 'windows-latest'
-      run: Rename-Item C:\Users\runneradmin\.rustup\toolchains\stable-x86_64-pc-windows-msvc C:\Users\runneradmin\.rustup\toolchains\stable-x86_64-pc-windows-msvc.old
+    # # We need to disable the existing toolchain to avoid updating rust-docs
+    # # which takes a long time. The fastest way to do this is to rename the
+    # # existing folder, as deleting it takes about as much time as not doing
+    # # anything and just updating rust-docs.
+    # - name: Rename existing rust toolchain (Windows)
+    #   if: matrix.os == 'windows-latest'
+    #   run: Rename-Item C:\Users\runneradmin\.rustup\toolchains\stable-x86_64-pc-windows-msvc C:\Users\runneradmin\.rustup\toolchains\stable-x86_64-pc-windows-msvc.old
 
     - name: Install Rust toolchain
       uses: actions-rs/toolchain@v1