fix compiler location (#6917)

Author: KevinRansom

src/utils/CompilerLocationUtils.fs

@@ -220,7 +220,6 @@ module internal FSharpEnvironment =
                 // For the prototype compiler, we can just use the current domain
                 tryCurrentDomain()
         with e -> 
-            System.Diagnostics.Debug.Assert(false, "Error while determining default location of F# compiler")
             None