commented Firefox settings again in ci-test-environment.xml

Change-Id: Ic95aec84cfda0d6499161f9fb3fe1f37c5a1f80e

java/com.sap.sailing.selenium.test/ci-test-environment.xml

@@ -44,10 +44,12 @@
         <name>webdriver.enable.native.events </name>
         <value>true</value>
      </system-property>
+  <!--
      <system-property>
         <name>webdriver.firefox.bin</name>
-        <value>c:\Program Files (x86)\Mozilla Firefox 24\firefox.exe</value>
+        <value>[path to]\firefox.exe</value>
      </system-property>
+  -->
   </system-properties>
   
   <!--