Removing sched_getcpu for musl as no current releases support it

Author: raphaelcohn

src/unix/notbsd/android/mod.rs

@@ -560,6 +560,7 @@ extern {
     pub fn __sched_cpualloc(count: ::size_t) -> *mut ::cpu_set_t;
     pub fn __sched_cpufree(set: *mut ::cpu_set_t);
     pub fn __sched_cpucount(setsize: ::size_t, set: *mut cpu_set_t) -> ::c_int;
+    pub fn sched_getcpu() -> ::c_int;
 }
 
 cfg_if! {

src/unix/notbsd/linux/other/mod.rs

@@ -506,6 +506,7 @@ extern {
     pub fn pthread_setaffinity_np(thread: ::pthread_t,
                                   cpusetsize: ::size_t,
                                   cpuset: *const ::cpu_set_t) -> ::c_int;
+    pub fn sched_getcpu() -> ::c_int;
 }
 
 cfg_if! {

src/unix/notbsd/mod.rs

@@ -804,7 +804,6 @@ extern {
     pub fn stat64(path: *const c_char, buf: *mut stat64) -> ::c_int;
     pub fn eventfd(init: ::c_uint, flags: ::c_int) -> ::c_int;
     pub fn sysinfo (info: *mut ::sysinfo) -> ::c_int;
-    pub fn sched_getcpu() -> ::c_int;
 }
 
 cfg_if! {