no-lto on release x64 build

Author: zijiehe-google-com

.ci.yaml

@@ -195,12 +195,7 @@ targets:
 
   - name: Linux linux_fuchsia
     recipe: engine_v2/engine_v2
-    # Temporarily increase the timeout of this builder to 75 minutes to avoid
-    # being penetrated by cold goma / rbclient cache.
-    # TODO(zijiehe-google-com): Drop the timeout to 60 minutes once the release
-    # builder can finish within a reasonable time.
-    # https://github.com/flutter/flutter/issues/142932
-    timeout: 75
+    timeout: 60
     properties:
       release_build: "true"
       config_name: linux_fuchsia

ci/builders/linux_fuchsia.json

@@ -127,7 +127,8 @@
                 "--fuchsia-cpu",
                 "x64",
                 "--runtime-mode",
-                "release"
+                "release",
+                "--no-lto"
             ],
             "name": "fuchsia_release_x64",
             "ninja": {