chore: remove unnecessary main.rs file after optimization verification

Co-Authored-By: ayush.suresh@dourolabs.xyz <byteSlayer31037@gmail.com>

target_chains/stylus/contracts/wormhole/src/main.rs

@@ -1,10 +0,0 @@
-#![cfg_attr(not(any(test, feature = "export-abi")), no_main)]
-
-#[cfg(not(any(test, feature = "export-abi")))]
-#[unsafe(no_mangle)]
-pub extern "C" fn main() {}
-
-#[cfg(feature = "export-abi")]
-fn main() {
-    stylus_hello_world::print_from_args();
-}