test(sysctl): drop e2e example-compile test

Signed-off-by: Cong Wang <cwang@multikernel.io>

Author: congwang-mk

tests/test_sysctl.ml

@@ -289,23 +289,6 @@ fn main() -> i32 {
   let calls = count_occurrences "__ks_sysctl_hostname_read(__ks_sb_hostname)" c in
   Alcotest.(check int) "read called once per load" 1 calls
 
-let read_file p =
-  let ic = open_in p in
-  let s = really_input_string ic (in_channel_length ic) in
-  close_in ic; s
-
-let test_e2e_compiles_example () =
-  let example = "examples/sysctl_demo.ks" in
-  if not (Sys.file_exists example) then Alcotest.skip ()
-  else
-    let src = read_file example in
-    let c = user_c_of src in
-    Alcotest.(check bool) "ostype path"      true (mentions "/proc/sys/kernel/ostype" c);
-    Alcotest.(check bool) "ostype read"      true (mentions "__ks_sysctl_ostype_read" c);
-    Alcotest.(check bool) "somaxconn path"   true (mentions "/proc/sys/net/core/somaxconn" c);
-    Alcotest.(check bool) "somaxconn read"   true (mentions "__ks_sysctl_somaxconn_read" c);
-    Alcotest.(check bool) "somaxconn write"  true (mentions "__ks_sysctl_somaxconn_write" c)
-
 let () =
   Alcotest.run "sysctl" [
     "parse", [
@@ -335,7 +318,4 @@ let () =
       Alcotest.test_case "userspace rewrites load/store" `Quick test_userspace_rewrites_load_store;
       Alcotest.test_case "str sysctl load/store" `Quick test_str_sysctl_load_store;
     ];
-    "e2e", [
-      Alcotest.test_case "example file compiles" `Quick test_e2e_compiles_example;
-    ];
   ]