test to remove unit tests from build

.Rbuildignore

@@ -22,6 +22,7 @@
 ^public$
 ^data-raw$
 ^\.lintr$
+^inst/tinytest$
 ^tests/testthat/_snaps$
 ^vignettes/AMR\.Rmd$
 ^vignettes/AMR_intro\.png$
@@ -33,7 +34,6 @@
 ^vignettes/other_pkg.*\.Rmd$
 ^vignettes/PCA\.Rmd$
 ^vignettes/resistance_predict\.Rmd$
-^vignettes/SPSS\.Rmd$
 ^vignettes/WHONET\.Rmd$
 ^logo.svg$
 ^CRAN-SUBMISSION$