Update llvm-krun: removing set -x (#1062)

An unnecessary `set -x` got upstream and is messing up with the CI
test's visualization. This PR deletes it.

Author: Robertorosmaninho

bin/llvm-krun

@@ -1,6 +1,5 @@
 #!/bin/bash
 set -e
-set -x
 
 params=()
 pretty=()