simplify android

Author: gnzlbg

src/common.rs

@@ -172,20 +172,15 @@ extern {
 
 // These are all inline functions on android, so they end up just being entirely
 // missing on that platform.
-cfg_if! {
-    if #[cfg(target_os = "android")] {
-        // empty...
-    } else {
-        extern {
-            pub fn abs(i: c_int) -> c_int;
-            pub fn atof(s: *const c_char) -> c_double;
-            pub fn labs(i: c_long) -> c_long;
-            pub fn rand() -> c_int;
-            pub fn srand(seed: c_uint);
-        }
-    }
-}
 
+#[cfg(not(target_os = "android"))]
+extern {
+    pub fn abs(i: c_int) -> c_int;
+    pub fn atof(s: *const c_char) -> c_double;
+    pub fn labs(i: c_long) -> c_long;
+    pub fn rand() -> c_int;
+    pub fn srand(seed: c_uint);
+}
 
 cfg_if! {
     if #[cfg(windows)] {