Remove the use_tint_generator toggle

We now always use Tint.

Bug: dawn:571
Change-Id: Ic65669a9e00493292ed60cde00af6fa3f6e55ec2
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/65665
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
diff --git a/src/tests/DawnTest.cpp b/src/tests/DawnTest.cpp
index cb59775..ff07cb1 100644
--- a/src/tests/DawnTest.cpp
+++ b/src/tests/DawnTest.cpp
@@ -385,7 +385,7 @@
                    "    enable all available backend validation with less performance overhead.\n"
                    "    Set to 'disabled' to run with no validation (same as no flag).\n"
                    "  --enable-toggles: Comma-delimited list of Dawn toggles to enable.\n"
-                   "    ex.) skip_validation,use_tint_generator,disable_robustness,turn_off_vsync\n"
+                   "    ex.) skip_validation,disable_robustness,turn_off_vsync\n"
                    "  --disable-toggles: Comma-delimited list of Dawn toggles to disable\n"
                    "  --adapter-vendor-id: Select adapter by vendor id to run end2end tests"
                    "on multi-GPU systems \n"