ledflasher: Remove references to ultrasound32 and audible32

These were mentioned in comment sections of the conf file but these
pairing modes are no longer supported.

BUG: 26441921
Change-Id: I99e8654bc10d0536d3cc458c6f457830f3173185
diff --git a/weaved.conf b/weaved.conf
index 19e83dc..15dc5c9 100644
--- a/weaved.conf
+++ b/weaved.conf
@@ -65,7 +65,7 @@
 # wifi_auto_setup_enabled=true
 # List of pairing modes supported by device.
-# Values can be one of pinCode, embeddedCode, ultrasound32, audible32.
+# Values can be one of: pinCode, embeddedCode.
 # Defaults to pinCode if embedded_code_path is empty, or embeddedCode otherwise.