Delete unused makefile in tests/ui

??????????

src/tools/tidy/src/ui_tests.rs

@@ -33,7 +33,6 @@
     "tests/ui/macros/macro-expanded-include/file.txt", // testing including data with the include macros
     "tests/ui/macros/not-utf8.bin", // testing including data with the include macros
     "tests/ui/macros/syntax-extension-source-utils-files/includeme.fragment", // more include
-    "tests/ui/unused-crate-deps/test.mk", // why would you use make
     "tests/ui/proc-macro/auxiliary/included-file.txt", // more include
     "tests/ui/invalid/foo.natvis.xml", // sample debugger visualizer
 ];

tests/ui/unused-crate-deps/test.mk

@@ -1,7 +0,0 @@
-# Everyone uses make for building Rust
-
-foo: bar.rlib
-	$(RUSTC) --crate-type bin --extern bar=bar.rlib
-
-%.rlib: %.rs
-	$(RUSTC) --crate-type lib $<