Drop old ruby conditional branch

Author: pirj

script/custom_build_functions.sh

@@ -2,12 +2,7 @@ function run_cukes {
   if [ -d features ]; then
     echo "${PWD}/bin/cucumber"
 
-    if is_mri_192; then
-      # For some reason we get SystemStackError on 1.9.2 when using
-      # the bin/cucumber approach below. That approach is faster
-      # (as it avoids the bundler tax), so we use it on rubies where we can.
-      bundle exec cucumber --strict
-    elif is_jruby; then
+    if is_jruby; then
       echo "WARNING: Cucumber is skipped on JRuby on rspec-core due to" \
            "excessive build times (>45 minutes) causing timeouts on Travis"
       return 0