Remove redundant R version checks

Change-Id: I51009d002e943aa4187cd7105b7a6935368d6b60
diff --git a/R/KorAPQuery.R b/R/KorAPQuery.R
index db5ad6f..296efa5 100644
--- a/R/KorAPQuery.R
+++ b/R/KorAPQuery.R
@@ -70,7 +70,7 @@
 maxResultsPerPage <- 50
 
 ## quiets concerns of R CMD check re: the .'s that appear in pipelines
-if(getRversion() >= "2.15.1")  utils::globalVariables(c("."))
+utils::globalVariables(c("."))
 
 #' Corpus query
 #'