Don’t use a single-file src directory for percent_encoding

percent_encoding/Cargo.toml

@@ -9,9 +9,8 @@ license = "MIT/Apache-2.0"
 [lib]
 doctest = false
 test = false
+path = "lib.rs"
 
 [dev-dependencies]
 rustc-test = "0.1"
 rustc-serialize = "0.3"
-
-[dependencies]