Remove unnecessary dependencies on libc in various utilities.

src/basename/Cargo.toml

@@ -8,7 +8,6 @@ name = "uu_basename"
 path = "basename.rs"
 
 [dependencies]
-libc = "*"
 uucore = { path="../uucore" }
 
 [[bin]]

src/basename/basename.rs

@@ -9,8 +9,6 @@
  * file that was distributed with this source code.
  */
 
-extern crate libc;
-
 #[macro_use]
 extern crate uucore;
 

src/cut/Cargo.toml

@@ -8,7 +8,6 @@ name = "uu_cut"
 path = "cut.rs"
 
 [dependencies]
-libc = "*"
 uucore = { path="../uucore" }
 
 [[bin]]

src/cut/cut.rs

@@ -9,8 +9,6 @@
  * file that was distributed with this source code.
  */
 
-extern crate libc;
-
 #[macro_use]
 extern crate uucore;
 

src/dircolors/Cargo.toml

@@ -9,7 +9,6 @@ path = "dircolors.rs"
 
 [dependencies]
 glob = "*"
-libc = "*"
 uucore = { path="../uucore" }
 
 [[bin]]

src/dircolors/dircolors.rs

@@ -8,7 +8,6 @@
 // file that was distributed with this source code.
 //
 
-extern crate libc;
 extern crate glob;
 
 #[macro_use]

src/du/Cargo.toml

@@ -8,7 +8,6 @@ name = "uu_du"
 path = "du.rs"
 
 [dependencies]
-libc = "*"
 time = "*"
 uucore = { path="../uucore" }
 

src/du/du.rs

@@ -11,7 +11,6 @@
 
 #![allow(non_snake_case)]
 
-extern crate libc;
 extern crate time;
 
 #[macro_use]

src/echo/Cargo.toml

@@ -8,7 +8,6 @@ name = "uu_echo"
 path = "echo.rs"
 
 [dependencies]
-libc = "*"
 uucore = { path="../uucore" }
 
 [[bin]]

src/echo/echo.rs

@@ -9,8 +9,6 @@
  * file that was distributed with this source code.
  */
 
-extern crate libc;
-
 #[macro_use]
 extern crate uucore;
 

src/expand/Cargo.toml

@@ -8,7 +8,6 @@ name = "uu_expand"
 path = "expand.rs"
 
 [dependencies]
-libc = "*"
 unicode-width = "*"
 getopts = "*"
 uucore = { path="../uucore" }

src/expand/expand.rs

@@ -11,7 +11,6 @@
  * file that was distributed with this source code.
  */
 
-extern crate libc;
 extern crate unicode_width;
 extern crate getopts;
 

src/factor/Cargo.toml

@@ -8,7 +8,6 @@ name = "uu_factor"
 path = "factor.rs"
 
 [dependencies]
-libc = "*"
 rand = "*"
 uucore = { path="../uucore" }
 

src/factor/factor.rs

@@ -13,7 +13,6 @@
 * that was distributed with this source code.
 */
 
-extern crate libc;
 extern crate rand;
 
 #[macro_use]

src/fold/Cargo.toml

@@ -8,7 +8,6 @@ name = "uu_fold"
 path = "fold.rs"
 
 [dependencies]
-libc = "*"
 uucore = { path="../uucore" }
 
 [[bin]]

src/fold/fold.rs

@@ -9,8 +9,6 @@
  * file that was distributed with this source code.
  */
 
-extern crate libc;
-
 #[macro_use]
 extern crate uucore;
 

src/mktemp/Cargo.toml

@@ -10,7 +10,6 @@ path = "mktemp.rs"
 [dependencies]
 uucore = { path="../uucore" }
 getopts = "*"
-libc = "*"
 rand = "0.3"
 tempfile = "*"
 

src/mktemp/mktemp.rs

@@ -10,7 +10,6 @@
 //
 
 extern crate getopts;
-extern crate libc;
 extern crate tempfile;
 extern crate rand;
 

src/paste/Cargo.toml

@@ -9,7 +9,6 @@ path = "paste.rs"
 
 [dependencies]
 getopts = "*"
-libc = "*"
 uucore = { path="../uucore" }
 
 [[bin]]

src/paste/paste.rs

@@ -10,7 +10,6 @@
  */
 
 extern crate getopts;
-extern crate libc;
 
 #[macro_use]
 extern crate uucore;