diff --git a/testing/cmake/CMakeLists.txt b/testing/cmake/CMakeLists.txt
index 6e8206813..294e0e5d4 100644
--- a/testing/cmake/CMakeLists.txt
+++ b/testing/cmake/CMakeLists.txt
@@ -1,24 +1,3 @@
-thrust_update_system_found_flags()
-
-set(extra_cmake_flags)
-
-if (THRUST_CPP_FOUND AND THRUST_CUDA_FOUND)
-  # Test that we can use `find_package` on an installed Thrust:
-  add_test(
-    NAME thrust.test.cmake.test_install
-    COMMAND "${CMAKE_COMMAND}"
-      --log-level=VERBOSE
-      -G "${CMAKE_GENERATOR}"
-      -S "${CMAKE_CURRENT_SOURCE_DIR}/test_install"
-      -B "${CMAKE_CURRENT_BINARY_DIR}/test_install"
-      -D "THRUST_BINARY_DIR=${Thrust_BINARY_DIR}"
-      -D "CMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}"
-      -D "CMAKE_CUDA_COMPILER=${CMAKE_CUDA_COMPILER}"
-      -D "CMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}"
-      ${extra_cmake_flags}
-  )
-endif()
-
 # Check source code for issues that can be found by pattern matching:
 add_test(
   NAME thrust.test.cmake.check_source_files
diff --git a/testing/cmake/test_install/CMakeLists.txt b/testing/cmake/test_install/CMakeLists.txt
deleted file mode 100644
index 6947fe2c1..000000000
--- a/testing/cmake/test_install/CMakeLists.txt
+++ /dev/null
@@ -1,110 +0,0 @@
-# Test that an installation of the project can be located by find_package() call
-# with appropriate prefix settings.
-#
-# Expects THRUST_BINARY_DIR to be set to an existing thrust build directory.
-
-cmake_minimum_required(VERSION 3.15)
-
-project(ThrustTestInstall LANGUAGES CXX CUDA)
-
-# This will eventually get deleted recursively -- keep that in mind if modifying
-set(CMAKE_INSTALL_PREFIX "${CMAKE_CURRENT_BINARY_DIR}/install_prefix/")
-
-function(do_manual_install)
-  # Inspired by the VTK-m install tests, we can just glob up all of the
-  # cmake_install.cmake, include (ie. run) them, and they'll effectively
-  # install the project into the current value of CMAKE_INSTALL_PREFIX.
-
-  # Gather all of the install files from Thrust's root:
-  file(GLOB_RECURSE install_files
-    LIST_DIRECTORIES False
-    "${THRUST_BINARY_DIR}/cmake_install.cmake"
-  )
-
-  message(STATUS "Locating install files...")
-  foreach (install_file IN LISTS install_files)
-    message(STATUS "  * ${install_file}")
-  endforeach()
-
-  message(STATUS "Building install tree...")
-  foreach(install_file IN LISTS install_files)
-    include("${install_file}")
-  endforeach()
-endfunction()
-
-function(do_cleanup)
-  message(STATUS "Removing ${CMAKE_INSTALL_PREFIX}")
-  file(REMOVE_RECURSE "${CMAKE_INSTALL_PREFIX}")
-endfunction()
-
-function(assert_boolean var_name expect)
-  if (expect)
-    if (NOT ${var_name})
-      message(FATAL_ERROR "'${var_name}' is false, expected true.")
-    endif()
-  else()
-    if (${var_name})
-      message(FATAL_ERROR "'${var_name}' is true, expected false.")
-    endif()
-  endif()
-endfunction()
-
-function(assert_target target_name)
-  if (NOT TARGET "${target_name}")
-    message(FATAL_ERROR "Target '${target_name}' not defined.")
-  endif()
-endfunction()
-
-function(find_installed_project)
-  set(CMAKE_PREFIX_PATH "${CMAKE_INSTALL_PREFIX}")
-  find_package(Thrust CONFIG COMPONENTS CPP CUDA)
-
-  if (NOT Thrust_FOUND)
-    message(FATAL_ERROR
-      "find_package(Thrust) failed. "
-      "CMAKE_PREFIX_PATH=${CMAKE_PREFIX_PATH}"
-    )
-  endif()
-
-  # Test some internal config vars to check that this is the expected install:
-  # TODO The cmake_path (3.19) command will provide more robust ways to do this
-
-  # Escape regex special characters in the install prefix, see
-  # https://gitlab.kitware.com/cmake/cmake/-/issues/18580
-  string(REGEX REPLACE "([][+.*()^])" "\\\\\\1"
-    prefix_regex
-    "${CMAKE_INSTALL_PREFIX}"
-  )
-  if (NOT _THRUST_INCLUDE_DIR MATCHES "^${prefix_regex}")
-    message(FATAL_ERROR
-      "Found Thrust in unexpected location: "
-      " * _THRUST_INCLUDE_DIR=${_THRUST_INCLUDE_DIR} "
-      " * ExpectedPrefix=${CMAKE_INSTALL_DIR}"
-    )
-  endif()
-  if (NOT _CUB_INCLUDE_DIR MATCHES "^${prefix_regex}")
-    message(FATAL_ERROR
-      "Found CUB in unexpected location: "
-      " * _CUB_INCLUDE_DIR=${_CUB_INCLUDE_DIR} "
-      " * ExpectedPrefix=${CMAKE_INSTALL_DIR}"
-    )
-  endif()
-
-  thrust_create_target(Thrust)
-  assert_target(Thrust)
-  assert_target(CUB::CUB)
-  assert_target(Thrust::CPP::Host)
-  assert_target(Thrust::CUDA::Device)
-
-  thrust_update_system_found_flags()
-  assert_boolean(THRUST_CPP_FOUND TRUE)
-  assert_boolean(THRUST_CUDA_FOUND TRUE)
-  assert_boolean(THRUST_OMP_FOUND FALSE)
-  assert_boolean(THRUST_TBB_FOUND FALSE)
-
-endfunction()
-
-do_cleanup() # Prepare for new installation
-do_manual_install()
-find_installed_project()
-do_cleanup() # Clean up if successful