fixed small typo in documentation

Author: keighrim

documentation/target-versions.csv

@@ -5,7 +5,6 @@
 1.0.13,"1.0.4"
 1.0.12,"1.0.4"
 1.0.11,"1.0.4"
-1.0.10.dev1,"1.0.3"
 1.0.10,"1.0.2"
 1.0.9,"1.1.0"
 1.0.8,"1.0.0"