Remove unreachable fuchsia branches

Author: gnzlbg

src/unix/mod.rs

@@ -347,10 +347,6 @@ cfg_if! {
         #[link(name = "root")]
         #[link(name = "network")]
         extern {}
-    } else if #[cfg(target_os = "fuchsia")] {
-        #[link(name = "c")]
-        #[link(name = "fdio")]
-        extern {}
     } else if #[cfg(target_env = "newlib")] {
         #[link(name = "c")]
         #[link(name = "m")]
@@ -1126,8 +1122,7 @@ cfg_if! {
         pub use self::newlib::*;
     } else if #[cfg(any(target_os = "linux",
                         target_os = "android",
-                        target_os = "emscripten",
-                        target_os = "fuchsia"))] {
+                        target_os = "emscripten"))] {
         mod notbsd;
         pub use self::notbsd::*;
     } else if #[cfg(any(target_os = "macos",

src/unix/notbsd/linux/mod.rs

@@ -2242,7 +2242,7 @@ extern {
 }
 
 cfg_if! {
-    if #[cfg(any(target_env = "musl", target_os = "fuchsia"))] {
+    if #[cfg(target_env = "musl")] {
         mod musl;
         pub use self::musl::*;
     } else if #[cfg(any(target_arch = "mips",

src/unix/notbsd/mod.rs

@@ -53,8 +53,7 @@ s! {
         pub ai_addrlen: socklen_t,
 
         #[cfg(any(target_os = "linux",
-                  target_os = "emscripten",
-                  target_os = "fuchsia"))]
+                  target_os = "emscripten"))]
         pub ai_addr: *mut ::sockaddr,
 
         pub ai_canonname: *mut c_char,
@@ -1235,7 +1234,7 @@ cfg_if! {
     if #[cfg(target_os = "emscripten")] {
         mod emscripten;
         pub use self::emscripten::*;
-    } else if #[cfg(any(target_os = "linux", target_os = "fuchsia"))] {
+    } else if #[cfg(target_os = "linux")] {
         mod linux;
         pub use self::linux::*;
     } else if #[cfg(target_os = "android")] {