Remove proc-macro dependency

Author: gnzlbg

libtest/Cargo.toml

@@ -11,7 +11,4 @@ crate-type = ["dylib", "rlib"]
 
 [dependencies]
 getopts = "0.2"
-term = { path = "../libterm" }
-
-# not actually used but needed to always have proc_macro in the sysroot
-proc_macro = { path = "../libproc_macro" }
+term = { path = "../libterm" }