Is Perl already installed on Travis?

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/.travis.yml b/.travis.yml
index d89e4af..fa3c6d7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,7 +14,6 @@
     - name: Windows
       os: windows
       before_install:
-        - choco install strawberryperl
         - choco install python --version=3.5.4
       env:
         # Add the directory where the Choco packages go