[test] Remove status check from BootstrapTest::start()

This commit removes the status check from BootstrapTest::start() since
we already have a test for that and reset_delay should be enough

Signed-off-by: Alphan Ulusoy <alphan@google.com>
diff --git a/sw/host/tests/rom/e2e_bootstrap_entry/src/main.rs b/sw/host/tests/rom/e2e_bootstrap_entry/src/main.rs
index c53ec8d..81c6c08 100644
--- a/sw/host/tests/rom/e2e_bootstrap_entry/src/main.rs
+++ b/sw/host/tests/rom/e2e_bootstrap_entry/src/main.rs
@@ -6,7 +6,6 @@
 use regex::Regex;
 use std::matches;
 use std::ops::Drop;
-use std::thread;
 use std::time::Duration;
 use structopt::StructOpt;
 
@@ -80,12 +79,6 @@
         };
         transport.apply_pin_strapping("ROM_BOOTSTRAP")?;
         transport.reset_target(b.reset_delay, true)?;
-
-        let spi = transport.spi("0")?;
-        while SpiFlash::read_status(&*spi)? != 0 {
-            thread::sleep(Duration::from_millis(10));
-        }
-
         Ok(b)
     }
 }