flashrom_tester: Remove --output log redirect option

Always print logs to stdout. User can redirect logs in the normal way if
they wish.

BUG=b:194245688
BRANCH=None
TEST=clippy, unit

Change-Id: I5eab8169644a16ba31b203e8607853c459f92978
Signed-off-by: Evan Benn <evanbenn@chromium.org>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/71773
Reviewed-by: Nikolai Artemiev <nartemiev@google.com>
Reviewed-by: Peter Marheine <pmarheine@chromium.org>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

util/flashrom_tester/src/main.rs

@@ -41,7 +41,6 @@ mod logger;
 use clap::{App, Arg};
 use flashrom::{FlashChip, Flashrom, FlashromCmd, FlashromLib};
 use flashrom_tester::{tester, tests};
-use std::path::PathBuf;
 use std::sync::atomic::AtomicBool;
 
 pub mod built_info {
@@ -91,13 +90,6 @@ fn main() {
                 .long("print-layout")
                 .help("Print the layout file's contents before running tests"),
         )
-        .arg(
-            Arg::with_name("log-file")
-                .short("o")
-                .long("log-file")
-                .takes_value(true)
-                .help("Write logs to a file rather than stdout"),
-        )
         .arg(
             Arg::with_name("log_debug")
                 .short("d")
@@ -121,10 +113,7 @@ fn main() {
         )
         .get_matches();
 
-    logger::init(
-        matches.value_of_os("log-file").map(PathBuf::from),
-        matches.is_present("log_debug"),
-    );
+    logger::init(matches.is_present("log_debug"));
     debug!("Args parsed and logging initialized OK");
 
     debug!("Collecting crossystem info");