Revert compiletest patch

Author: phansch

Cargo.toml

@@ -48,7 +48,7 @@ rustc_tools_util = { version = "0.1.0", path = "rustc_tools_util"}
 [dev-dependencies]
 clippy_dev = { version = "0.0.1", path = "clippy_dev" }
 cargo_metadata = "0.6"
-compiletest_rs = { git = "https://github.com/phansch/compiletest-rs.git", branch = "debug_clippy_ui_diff_issue" }
+compiletest_rs = "0.3.16"
 lazy_static = "1.0"
 serde_derive = "1.0"
 clippy-mini-macro-test = { version = "0.2", path = "mini-macro" }