fix: remove duplicated log

This guides to a misunderstanding during log review.

Includes-commit: d3ccc87f01
Replicated-from: https://github.com/cloudflare/pingora/pull/684

.bleep

@@ -1 +1 @@
-b70a283a7a14b3ddfb81b71c09eb6a6da83805b5
+7d032e20a6e61ab881ba70abd9f3948c3deacded

pingora-core/src/server/mod.rs

@@ -473,11 +473,8 @@ impl Server {
     /// Note: this function may fork the process for daemonization, so any additional threads created
     /// before this function will be lost to any service logic once this function is called.
     pub fn run_forever(self) -> ! {
-        info!("Server starting");
-
         self.run(RunArgs::default());
 
-        info!("All runtimes exited, exiting now");
         std::process::exit(0)
     }