Revert auto-detection back so that it does not try to upgrade lintr

Author: HyukjinKwon

dev/lint-r.R

@@ -24,15 +24,9 @@ if (! library(SparkR, lib.loc = LOCAL_LIB_LOC, logical.return = TRUE)) {
   stop("You should install SparkR in a local directory with `R/install-dev.sh`.")
 }
 
-# Installs lintr from Github in a local directory if lintr is not installed already or
-# the existing lintr is not the specified version.
-#
-# Note that, the CRAN's version is too old to adapt to our rules. Therefore, we try to
-# install lintr from the latest commit in Github, rather than a specific tag or release.
-# The current latest is jimhester/lintr@5431140 (see SPARK-22063), the dev version,
-# '1.0.1.9000'.
-if ("lintr" %in% row.names(installed.packages()) == FALSE ||
-    packageVersion("lintr") != "1.0.1.9000") {
+# Installs lintr from Github in a local directory.
+# NOTE: The CRAN's version is too old to adapt to our rules.
+if ("lintr" %in% row.names(installed.packages()) == FALSE) {
   devtools::install_github("jimhester/lintr@5431140")
 }