Delete unsupported sockaddr_in pattern

One of the fields of sockaddr_in is u8 on Linux and u16 on macOS. We
emit integer literals suffix when initializing each field. On Linux we
emit 2_u8, and on macOS we emit 2_u16 for example. To fix this we should
not emit integer literal suffix at all.

Author: lucic71

tests/unit/libc_struct_without_default.c

@@ -23,16 +23,8 @@ int main() {
   assert(t.tm_mon == 5);
   assert(t.tm_mday == 15);
 
-  struct sockaddr_in sa;
-  sa.sin_family = AF_INET;
-  sa.sin_port = 8080;
-  assert(sa.sin_family == AF_INET);
-  assert(sa.sin_port == 8080);
-
   struct stat st;
   st.st_size = 1024;
   assert(st.st_size == 1024);
-  assert(p.fd == -1);
-  assert(p.events == 0);
   return 0;
 }

tests/unit/out/unsafe/libc_struct_without_default.rs

@@ -26,15 +26,8 @@ unsafe fn main_0() -> i32 {
     assert!(((((t.tm_year) == (124)) as i32) != 0));
     assert!(((((t.tm_mon) == (5)) as i32) != 0));
     assert!(((((t.tm_mday) == (15)) as i32) != 0));
-    let mut sa: sockaddr_in = std::mem::zeroed::<sockaddr_in>();
-    sa.sin_family = 2_u16;
-    sa.sin_port = 8080_u16;
-    assert!(((((sa.sin_family as i32) == (2)) as i32) != 0));
-    assert!(((((sa.sin_port as i32) == (8080)) as i32) != 0));
     let mut st: stat = std::mem::zeroed::<stat>();
     st.st_size = 1024_i64;
     assert!(((((st.st_size) == (1024_i64)) as i32) != 0));
-    assert!(((((p.fd) == (-1_i32)) as i32) != 0));
-    assert!(((((p.events as i32) == (0)) as i32) != 0));
     return 0;
 }