Add step to delete dsBase's source code, after successful installation

Author: villegar

.github/workflows/R-CMD-check.yaml

@@ -57,6 +57,10 @@ jobs:
         run: |
           Rscript -e 'install.packages(c("RANN", "stringr", "lme4", "dplyr", "reshape2", "polycor", "gamlss", "gamlss.dist", "mice", "childsds", "usethis", "devtools"), dependencies = TRUE)'
           R CMD INSTALL ./dsBase
+      
+      - name: Remove dsBase source code
+        run: |
+          Rscript -e "'dsBase' %in% rownames(installed.packages())" | grep -q TRUE && rm -rf ./dsBase
           
       - uses: r-lib/actions/check-r-package@v2
         with: