diff --git a/common_audio/BUILD.gn b/common_audio/BUILD.gn
index 0dd5ec38ef..d8d44943b7 100644
--- a/common_audio/BUILD.gn
+++ b/common_audio/BUILD.gn
@@ -285,15 +285,6 @@ if (rtc_build_with_neon) {
       cflags = [ "-mfpu=neon" ]
     }
 
-    # Disable LTO on NEON targets due to compiler bug.
-    # TODO(fdegans): Enable this. See crbug.com/408997.
-    if (rtc_use_lto) {
-      cflags -= [
-        "-flto",
-        "-ffat-lto-objects",
-      ]
-    }
-
     deps = [
       ":common_audio_neon_c",
       ":fir_filter",
@@ -318,15 +309,6 @@ if (rtc_build_with_neon) {
       cflags = [ "-mfpu=neon" ]
     }
 
-    # Disable LTO on NEON targets due to compiler bug.
-    # TODO(fdegans): Enable this. See crbug.com/408997.
-    if (rtc_use_lto) {
-      cflags -= [
-        "-flto",
-        "-ffat-lto-objects",
-      ]
-    }
-
     deps = [
       ":common_audio_c",
       "../rtc_base:checks",
diff --git a/modules/audio_coding/BUILD.gn b/modules/audio_coding/BUILD.gn
index 1bfd7fb397..e28964dd1f 100644
--- a/modules/audio_coding/BUILD.gn
+++ b/modules/audio_coding/BUILD.gn
@@ -682,15 +682,6 @@ if (rtc_build_with_neon) {
       cflags = [ "-mfpu=neon" ]
     }
 
-    # Disable LTO on NEON targets due to compiler bug.
-    # TODO(fdegans): Enable this. See crbug.com/408997.
-    if (rtc_use_lto) {
-      cflags -= [
-        "-flto",
-        "-ffat-lto-objects",
-      ]
-    }
-
     deps = [
       ":isac_fix_common",
       "../../common_audio",
diff --git a/modules/audio_processing/BUILD.gn b/modules/audio_processing/BUILD.gn
index eaa88261f3..e4df10b7ec 100644
--- a/modules/audio_processing/BUILD.gn
+++ b/modules/audio_processing/BUILD.gn
@@ -348,15 +348,6 @@ rtc_source_set("audio_processing_c") {
       suppressed_configs += [ "//build/config/compiler:compiler_arm_fpu" ]
       cflags = [ "-mfpu=neon" ]
     }
-
-    # Disable LTO on NEON targets due to compiler bug.
-    # TODO(fdegans): Enable this. See crbug.com/408997.
-    if (rtc_use_lto) {
-      cflags -= [
-        "-flto",
-        "-ffat-lto-objects",
-      ]
-    }
   }
 }
 
diff --git a/modules/audio_processing/aec/BUILD.gn b/modules/audio_processing/aec/BUILD.gn
index 294c43f032..0deaba59bc 100644
--- a/modules/audio_processing/aec/BUILD.gn
+++ b/modules/audio_processing/aec/BUILD.gn
@@ -63,15 +63,6 @@ rtc_source_set("aec_core") {
       cflags += [ "-mfpu=neon" ]
     }
 
-    # Disable LTO on NEON targets due to compiler bug.
-    # TODO(fdegans): Enable this. See crbug.com/408997.
-    if (rtc_use_lto) {
-      cflags -= [
-        "-flto",
-        "-ffat-lto-objects",
-      ]
-    }
-
     deps += [ "../../../common_audio" ]
   }
 
diff --git a/modules/audio_processing/aecm/BUILD.gn b/modules/audio_processing/aecm/BUILD.gn
index 8250173afe..dbb4d2f23d 100644
--- a/modules/audio_processing/aecm/BUILD.gn
+++ b/modules/audio_processing/aecm/BUILD.gn
@@ -34,15 +34,6 @@ rtc_source_set("aecm_core") {
       suppressed_configs += [ "//build/config/compiler:compiler_arm_fpu" ]
       cflags += [ "-mfpu=neon" ]
     }
-
-    # Disable LTO on NEON targets due to compiler bug.
-    # TODO(fdegans): Enable this. See crbug.com/408997.
-    if (rtc_use_lto) {
-      cflags -= [
-        "-flto",
-        "-ffat-lto-objects",
-      ]
-    }
   }
 
   if (current_cpu == "mipsel") {
diff --git a/modules/audio_processing/agc/BUILD.gn b/modules/audio_processing/agc/BUILD.gn
index 09781b2428..f8ed5393b0 100644
--- a/modules/audio_processing/agc/BUILD.gn
+++ b/modules/audio_processing/agc/BUILD.gn
@@ -79,15 +79,6 @@ rtc_source_set("agc_legacy_c") {
       suppressed_configs += [ "//build/config/compiler:compiler_arm_fpu" ]
       cflags = [ "-mfpu=neon" ]
     }
-
-    # Disable LTO on NEON targets due to compiler bug.
-    # TODO(fdegans): Enable this. See crbug.com/408997.
-    if (rtc_use_lto) {
-      cflags -= [
-        "-flto",
-        "-ffat-lto-objects",
-      ]
-    }
   }
 }
 
diff --git a/modules/audio_processing/utility/BUILD.gn b/modules/audio_processing/utility/BUILD.gn
index b24d0e965f..0ba0f5b060 100644
--- a/modules/audio_processing/utility/BUILD.gn
+++ b/modules/audio_processing/utility/BUILD.gn
@@ -67,15 +67,6 @@ rtc_source_set("ooura_fft") {
       suppressed_configs += [ "//build/config/compiler:compiler_arm_fpu" ]
       cflags += [ "-mfpu=neon" ]
     }
-
-    # Disable LTO on NEON targets due to compiler bug.
-    # TODO(fdegans): Enable this. See crbug.com/408997.
-    if (rtc_use_lto) {
-      cflags -= [
-        "-flto",
-        "-ffat-lto-objects",
-      ]
-    }
   }
 
   if (current_cpu == "mipsel" && mips_float_abi == "hard") {
diff --git a/webrtc.gni b/webrtc.gni
index dece36e6ef..2e6ccc8703 100644
--- a/webrtc.gni
+++ b/webrtc.gni
@@ -124,11 +124,6 @@ declare_args() {
   # NDK r16 or above.
   rtc_enable_android_aaudio = false
 
-  # Link-Time Optimizations.
-  # Executes code generation at link-time instead of compile-time.
-  # https://gcc.gnu.org/wiki/LinkTimeOptimization
-  rtc_use_lto = false
-
   # Set to "func", "block", "edge" for coverage generation.
   # At unit test runtime set UBSAN_OPTIONS="coverage=1".
   # It is recommend to set include_examples=0.