No need to check if sphinx folder exists

gitlab/deploy.sh

@@ -17,12 +17,11 @@ for os in "osx-64" "noarch" "linux-64"; do
   done
 done
 
-# if the sphinx folder exists (usually for Linux Python 3.6), upload the docs.
-if [[ -e sphinx ]]; then
-  for folder in "${DOC_UPLOADS[@]}"; do
-    dav_upload_folder sphinx "${folder}"
-  done
-fi
+# upload the docs from the sphinx folder (usually an artifact of Linux Python
+# 3.6 builds)
+for folder in "${DOC_UPLOADS[@]}"; do
+  dav_upload_folder sphinx "${folder}"
+done
 
 # Deletes all the old packages if in beta
 if [ -z "${CI_COMMIT_TAG}" ]; then #beta