Drop 5.23 tests.

theory · theory · commit 0d7bb2a38ee9 · 2016-02-03T10:34:04.000-08:00
Not yet supported by Travis.
diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,5 @@
 language: perl
 perl:
-  - "5.23"
   - "5.22"
   - "5.20"
   - "5.18"

-Original file line number
+Diff line change
@@ @@ -1,6 +1,5 @@ @@
 language: perl
 perl:
 -  - "5.23"
   - "5.22"
   - "5.20"
   - "5.18"