Remove one last assignment to EXPERIMENTAL

The reference was spelled 'Experimental', and so escaped initial
searches.

BUG=None
TEST=None

Change-Id: I3b5ce13d2865e1b1a89c2341b783527c8685e394
Reviewed-on: https://chromium-review.googlesource.com/199425
Tested-by: Richard Barnette <jrbarnette@chromium.org>
Reviewed-by: Prashanth B <beeps@chromium.org>
diff --git a/client/tests/kvmtest/control b/client/tests/kvmtest/control
index 32a9681..dadc44d 100644
--- a/client/tests/kvmtest/control
+++ b/client/tests/kvmtest/control
@@ -4,7 +4,6 @@
 TEST_TYPE = 'client'
 TEST_CLASS = 'Kernel'
 TEST_CATEGORY = 'Functional'
-Experimental = 'True'
 
 DOC = '''
 kvm-test is a package for automating guest installation. For more information