diff --git a/experiments/field_trials.py b/experiments/field_trials.py
index 9d572b0837..9bdcb58a5c 100755
--- a/experiments/field_trials.py
+++ b/experiments/field_trials.py
@@ -856,9 +856,6 @@ POLICY_EXEMPT_FIELD_TRIALS: FrozenSet[FieldTrial] = frozenset([
     FieldTrial('WebRTC-Video-UseFrameRateForOverhead',
                'b/166341943',
                date(2024, 4, 1)),
-    FieldTrial('WebRTC-Video-VariableStartScaleFactor',
-               '',
-               date(2024, 4, 1)),
     FieldTrial('WebRTC-VideoFrameTrackingIdAdvertised',
                'webrtc:12594',
                INDEFINITE),
@@ -887,7 +884,7 @@ POLICY_EXEMPT_FIELD_TRIALS: FrozenSet[FieldTrial] = frozenset([
 ])  # yapf: disable
 
 POLICY_EXEMPT_FIELD_TRIALS_DIGEST: str = \
-    '680deace2615186c4d3cf9ed3bd3595b7b6c8ae8'
+    '263c7a29291a7c4472ff60c7c3b2520f6dd5cea8'
 
 REGISTERED_FIELD_TRIALS: FrozenSet[FieldTrial] = ACTIVE_FIELD_TRIALS.union(
     POLICY_EXEMPT_FIELD_TRIALS)
diff --git a/media/BUILD.gn b/media/BUILD.gn
index e3cae72d76..6568944cd3 100644
--- a/media/BUILD.gn
+++ b/media/BUILD.gn
@@ -128,7 +128,6 @@ rtc_library("rtc_media_base") {
     "../rtc_base/system:no_unique_address",
     "../rtc_base/system:rtc_export",
     "../rtc_base/third_party/sigslot",
-    "../system_wrappers:field_trial",
     "../video/config:encoder_config",
   ]
   absl_deps = [
diff --git a/media/base/video_adapter.cc b/media/base/video_adapter.cc
index a8731af9f5..5eadbf8c07 100644
--- a/media/base/video_adapter.cc
+++ b/media/base/video_adapter.cc
@@ -23,7 +23,6 @@
 #include "rtc_base/logging.h"
 #include "rtc_base/strings/string_builder.h"
 #include "rtc_base/time_utils.h"
-#include "system_wrappers/include/field_trial.h"
 
 namespace {
 
@@ -59,8 +58,7 @@ int roundUp(int value_to_round, int multiple, int max_value) {
 Fraction FindScale(int input_width,
                    int input_height,
                    int target_pixels,
-                   int max_pixels,
-                   bool variable_start_scale_factor) {
+                   int max_pixels) {
   // This function only makes sense for a positive target.
   RTC_DCHECK_GT(target_pixels, 0);
   RTC_DCHECK_GT(max_pixels, 0);
@@ -75,16 +73,14 @@ Fraction FindScale(int input_width,
   Fraction current_scale = Fraction{1, 1};
   Fraction best_scale = Fraction{1, 1};
 
-  if (variable_start_scale_factor) {
-    // Start scaling down by 2/3 depending on `input_width` and `input_height`.
-    if (input_width % 3 == 0 && input_height % 3 == 0) {
-      // 2/3 (then alternates 3/4, 2/3, 3/4,...).
-      current_scale = Fraction{6, 6};
-    }
-    if (input_width % 9 == 0 && input_height % 9 == 0) {
-      // 2/3, 2/3 (then alternates 3/4, 2/3, 3/4,...).
-      current_scale = Fraction{36, 36};
-    }
+  // Start scaling down by 2/3 depending on `input_width` and `input_height`.
+  if (input_width % 3 == 0 && input_height % 3 == 0) {
+    // 2/3 (then alternates 3/4, 2/3, 3/4,...).
+    current_scale = Fraction{6, 6};
+  }
+  if (input_width % 9 == 0 && input_height % 9 == 0) {
+    // 2/3, 2/3 (then alternates 3/4, 2/3, 3/4,...).
+    current_scale = Fraction{36, 36};
   }
 
   // The minimum (absolute) difference between the number of output pixels and
@@ -144,8 +140,6 @@ VideoAdapter::VideoAdapter(int source_resolution_alignment)
       adaption_changes_(0),
       previous_width_(0),
       previous_height_(0),
-      variable_start_scale_factor_(!webrtc::field_trial::IsDisabled(
-          "WebRTC-Video-VariableStartScaleFactor")),
       source_resolution_alignment_(source_resolution_alignment),
       resolution_alignment_(source_resolution_alignment),
       resolution_request_target_pixel_count_(std::numeric_limits<int>::max()),
@@ -233,7 +227,7 @@ bool VideoAdapter::AdaptFrameResolution(int in_width,
   }
   const Fraction scale =
       FindScale(*cropped_width, *cropped_height, target_pixel_count,
-                max_pixel_count, variable_start_scale_factor_);
+                max_pixel_count);
   // Adjust cropping slightly to get correctly aligned output size and a perfect
   // scale factor.
   *cropped_width = roundUp(*cropped_width,
diff --git a/media/base/video_adapter.h b/media/base/video_adapter.h
index b3e69c492b..c1d311d891 100644
--- a/media/base/video_adapter.h
+++ b/media/base/video_adapter.h
@@ -122,7 +122,6 @@ class RTC_EXPORT VideoAdapter {
   int previous_width_ RTC_GUARDED_BY(mutex_);  // Previous adapter output width.
   int previous_height_
       RTC_GUARDED_BY(mutex_);  // Previous adapter output height.
-  const bool variable_start_scale_factor_;
 
   // The fixed source resolution alignment requirement.
   const int source_resolution_alignment_;