sanitycheck: remove wrong message about --qemu-testing

--qemu-testing does not exist.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
diff --git a/scripts/sanity_chk/sanitylib.py b/scripts/sanity_chk/sanitylib.py
index de71132..42811e0 100644
--- a/scripts/sanity_chk/sanitylib.py
+++ b/scripts/sanity_chk/sanitylib.py
@@ -45,7 +45,7 @@
 try:
     import psutil
 except ImportError:
-    print("Install psutil python module with pip to use --qemu-testing option.")
+    print("Install psutil python module with pip to run in Qemu.")
 
 ZEPHYR_BASE = os.getenv("ZEPHYR_BASE")
 if not ZEPHYR_BASE: