diff --git a/.azure-pipelines-templates/build_check.yml b/.azure-pipelines-templates/build_check.yml
deleted file mode 100644
index 278f2ebfa5c..00000000000
--- a/.azure-pipelines-templates/build_check.yml
+++ /dev/null
@@ -1,4 +0,0 @@
-steps:
-  - script: python3 ../scripts/build-check.py < build.log ${{ parameters.target }}
-    displayName: "Build check"
-    workingDirectory: build
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 5d5bd9999db..5a769279795 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -92,13 +92,6 @@ jobs:
           ninja -v | tee build.log
         shell: bash
 
-      - name: "Check Mitigation Flags"
-        run: |
-          cd build
-          python3 ../scripts/build-check.py < build.log SNPCC
-        shell: bash
-        if: ${{ matrix.platform.name == 'snp' }}
-
       - name: "Install Extended Testing Tools"
         run: |
           set -ex
diff --git a/cmake/preproject.cmake b/cmake/preproject.cmake
index d1d08a99b6e..16ead6a0874 100644
--- a/cmake/preproject.cmake
+++ b/cmake/preproject.cmake
@@ -75,11 +75,4 @@ function(add_warning_checks name)
   )
 endfunction()
 
-set(SPECTRE_MITIGATION_FLAGS -mllvm -x86-speculative-load-hardening)
-if("${COMPILE_TARGET}" STREQUAL "snp")
-  if(NOT "${CMAKE_BUILD_TYPE}" STREQUAL "Debug")
-    add_compile_options(${SPECTRE_MITIGATION_FLAGS})
-  endif()
-endif()
-
 set(CMAKE_CXX_STANDARD 20)
diff --git a/scripts/build-check.py b/scripts/build-check.py
deleted file mode 100644
index 7108cb7b203..00000000000
--- a/scripts/build-check.py
+++ /dev/null
@@ -1,54 +0,0 @@
-# Copyright (c) Microsoft Corporation. All rights reserved.
-# Licensed under the Apache 2.0 License.
-
-import re
-import sys
-
-PLAUSIBLE_CLANG = re.compile(r"^.*/clang((\+\+)?-\d+)?$")
-NOT_IN_TCB = re.compile(".*/(tests?|perf)/.*")
-
-
-class Checker:
-    def __init__(self, platform):
-        assert platform == "SNPCC"
-        self.platform = platform
-        self.total_lines = 0
-        self.checked_lines = 0
-
-    def check_line(self, line):
-        self.total_lines += 1
-        words = line.split(" ")
-        for index, word in enumerate(words):
-            if PLAUSIBLE_CLANG.match(word):
-                break
-
-        # Not a build line
-        if index == len(words) - 1:
-            return
-
-        options = words[index + 1 :]
-
-        if any(NOT_IN_TCB.match(option) for option in options):
-            return
-
-        if "-shared" in options:
-            pass
-        elif any(option for option in options if option.startswith("-l")):
-            pass
-        else:
-            # Compile line
-            if self.platform == "SNPCC":
-                assert (
-                    "-x86-speculative-load-hardening" in options
-                ), f"Missing -x86-speculative-load-hardening in {line}"
-                self.checked_lines += 1
-
-    def stats(self):
-        print(f"Checked {self.checked_lines} out of {self.total_lines} lines")
-
-
-if __name__ == "__main__":
-    checker = Checker(sys.argv[1])
-    for line in sys.stdin:
-        checker.check_line(line)
-    checker.stats()