remove scary comment

Author: Oneirical

tests/run-make/same-lib-two-locations-no-panic/rmake.rs

@@ -3,10 +3,6 @@
 // This test tries to replicate the linked issue and checks
 // if the bugged error makes a resurgence.
 
-// Note that this relies on `liburl` to be in the path somewhere else.
-// Our aux-built libraries will collide with liburl (they have
-// the same version listed)
-
 // See https://github.com/rust-lang/rust/issues/11908
 
 //@ ignore-cross-compile