remove caching from Win workflow

Author: chrissimpkins

.github/workflows/windowsci.yml

@@ -7,22 +7,6 @@ jobs:
     name: Windows CI
     runs-on: windows-latest
     steps:
-      - name: Cache cargo registry
-        uses: actions/cache@v1
-        with:
-          path: ~/.cargo/registry
-          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
-      - name: Cache cargo index
-        uses: actions/cache@v1
-        with:
-          path: ~/.cargo/git
-          key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}
-      - name: Cache cargo build
-        uses: actions/cache@v1
-        with:
-          path: target
-          key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
-
       - uses: actions/checkout@v2
       - name: Install latest stable toolchain
         uses: actions-rs/toolchain@v1