Remove caching step for Go modules in performance monitoring workflow

.github/workflows/performance-monitor.yml

@@ -19,16 +19,6 @@ jobs:
       with:
         go-version: '1.25'
 
-    - name: Cache Go modules
-      uses: actions/cache@v3
-      with:
-        path: |
-          ~/go/pkg/mod
-          ~/.cache/go-build
-        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
-        restore-keys: |
-          ${{ runner.os }}-go-
-
     - name: Build
       run: |
         go build -o bin/reticulum-go ./cmd/reticulum-go