From dbf7e9d3cbc0adc1c8cea5f1002fcc01fc6e121b Mon Sep 17 00:00:00 2001
From: Jiaming Yuan <jm.yuan@outlook.com>
Date: Tue, 9 Feb 2021 18:53:20 +0800
Subject: [PATCH] Remove R cache in github action. (#6695)

The cache stores outdated packages with wrong linkage.  Right now there's no way to clear the cache.
---
 .github/workflows/r_tests.yml | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/.github/workflows/r_tests.yml b/.github/workflows/r_tests.yml
index 6900fd655..8d3714acb 100644
--- a/.github/workflows/r_tests.yml
+++ b/.github/workflows/r_tests.yml
@@ -112,13 +112,6 @@ jobs:
 
     - uses: r-lib/actions/setup-tinytex@master
 
-    - name: Cache R packages
-      uses: actions/cache@v2
-      with:
-        path: ${{ env.R_LIBS_USER }}
-        key: ${{ runner.os }}-r-${{ matrix.config.r }}-1-${{ hashFiles('R-package/DESCRIPTION') }}
-        restore-keys: ${{ runner.os }}-r-${{ matrix.config.r }}-2-
-
     - name: Install system packages
       run: |
         sudo apt-get update && sudo apt-get install libcurl4-openssl-dev libssl-dev libssh2-1-dev libgit2-dev