Remove fuzztest support from OR-Tools (#4938)

* Remove fuzztest support from OR-Tools

cmake/check_deps.cmake

@@ -121,9 +121,6 @@ if(BUILD_TESTING)
   if(NOT TARGET benchmark::benchmark)
     message(FATAL_ERROR "Target benchmark::benchmark not available.")
   endif()
-  if(USE_fuzztest AND NOT TARGET fuzztest::fuzztest)
-    message(FATAL_ERROR "Target fuzztest::fuzztest not available.")
-  endif()
 endif()
 
 # Check language Dependencies

cmake/dependencies/CMakeLists.txt

@@ -573,20 +573,3 @@ if(BUILD_benchmark)
   list(POP_BACK CMAKE_MESSAGE_INDENT)
   message(CHECK_PASS "fetched")
 endif()
-
-if(BUILD_fuzztest)
-  message(CHECK_START "Fetching fuzztest")
-  list(APPEND CMAKE_MESSAGE_INDENT "  ")
-  FetchContent_Declare(
-    fuzztest
-    GIT_REPOSITORY https://github.com/google/fuzztest.git
-    GIT_TAG 2025-08-05
-    GIT_SHALLOW TRUE
-    UPDATE_COMMAND git reset --hard
-    PATCH_COMMAND git apply --ignore-whitespace
-    "${CMAKE_CURRENT_LIST_DIR}/../../patches/fuzztest-2025-08-05.patch"
-  )
-  FetchContent_MakeAvailable(fuzztest)
-  list(POP_BACK CMAKE_MESSAGE_INDENT)
-  message(CHECK_PASS "fetched")
-endif()

cmake/system_deps.cmake

@@ -112,12 +112,6 @@ if(BUILD_TESTING)
   if(NOT BUILD_benchmark AND NOT TARGET benchmark::benchmark)
     find_package(benchmark REQUIRED)
   endif()
-
-  if(USE_fuzztest)
-    if(NOT BUILD_fuzztest AND NOT TARGET fuzztest::fuzztest)
-      find_package(fuzztest REQUIRED)
-    endif()
-  endif()
 endif()
 
 # Check language Dependencies