docs: removing 'dev version' language from 1.1.0 section of NEWS.md

NEWS.md

@@ -1,6 +1,6 @@
 ## ltertools Version 1.1.0
 
-Development version of `ltertools`. There are no ERRORs, WARNINGs, or NOTEs returned by `devtools::check()`. Changes from latest release will be listed here as they are made.
+There are no ERRORs, WARNINGs, or NOTEs returned by `devtools::check()`.
 
 - New function: `make_json` creates a JSON containing name/value pairs from a named vector. Optionally adds the JSON file name to the 'gitignore' (if one can be found in the working directory)
 - New function: `solar_day_info` identifies sunrise, sunset, solar noon, and day length for all dates within a user-specified range at particular coordinates