Revert "Add r2 upload step to wheel builds (pytorch#9265)"

This reverts commit 167730b.

Author: atalman

.github/workflows/build-wheels-aarch64-linux.yml

@@ -52,7 +52,3 @@ jobs:
       trigger-event: ${{ github.event_name }}
       architecture: aarch64
       setup-miniconda: false
-    secrets:
-      R2_ACCOUNT_ID: ${{ secrets.R2_ACCOUNT_ID }}
-      R2_ACCESS_KEY_ID: ${{ secrets.R2_ACCESS_KEY_ID }}
-      R2_SECRET_ACCESS_KEY: ${{ secrets.R2_SECRET_ACCESS_KEY }}

.github/workflows/build-wheels-windows.yml

@@ -52,7 +52,3 @@ jobs:
       package-name: ${{ matrix.package-name }}
       smoke-test-script: ${{ matrix.smoke-test-script }}
       trigger-event: ${{ github.event_name }}
-    secrets:
-      R2_ACCOUNT_ID: ${{ secrets.R2_ACCOUNT_ID }}
-      R2_ACCESS_KEY_ID: ${{ secrets.R2_ACCESS_KEY_ID }}
-      R2_SECRET_ACCESS_KEY: ${{ secrets.R2_SECRET_ACCESS_KEY }}

.github/workflows/build_wheel_windows_arm64.yml

@@ -52,7 +52,3 @@ jobs:
       smoke-test-script: ${{ matrix.smoke-test-script }}
       trigger-event: ${{ github.event_name }}
       architecture: ${{ matrix.architecture }}
-    secrets:
-      R2_ACCOUNT_ID: ${{ secrets.R2_ACCOUNT_ID }}
-      R2_ACCESS_KEY_ID: ${{ secrets.R2_ACCESS_KEY_ID }}
-      R2_SECRET_ACCESS_KEY: ${{ secrets.R2_SECRET_ACCESS_KEY }}