Remove pandoc

Author: dongjoon-hyun

.github/workflows/master.yml

@@ -106,9 +106,9 @@ jobs:
     - uses: r-lib/actions/setup-r@v1
       with:
         r-version: '3.6.2'
-    - name: Install lib and pandoc
+    - name: Install lib
       run: |
-        sudo apt-get install -y libcurl4-openssl-dev pandoc
+        sudo apt-get install -y libcurl4-openssl-dev
     - name: install R packages
       run: |
         sudo Rscript -e "install.packages(c('curl', 'xml2', 'httr', 'devtools', 'testthat', 'knitr', 'rmarkdown', 'roxygen2', 'e1071', 'survival'), repos='https://cloud.r-project.org/')"