security/palisade: Remove unnecessary patches removing the REQUIRED attribute from cmake's find_package(Threads)

svn path=/head/; revision=551659

security/palisade/files/patch-third-party_google-benchmark_CMakeLists.txt

@@ -9,12 +9,3 @@
    add_cxx_compiler_flag(-Wthread-safety)
    if (HAVE_CXX_FLAG_WTHREAD_SAFETY)
      cxx_feature_check(THREAD_SAFETY_ATTRIBUTES)
-@@ -260,7 +260,7 @@ endif()
- cxx_feature_check(STEADY_CLOCK)
- # Ensure we have pthreads
- set(THREADS_PREFER_PTHREAD_FLAG ON)
--find_package(Threads REQUIRED)
-+find_package(Threads)
- 
- # Set up directories
- include_directories(${PROJECT_SOURCE_DIR}/include)

security/palisade/files/patch-third-party_google-benchmark_test_CMakeLists.txt

@@ -1,10 +0,0 @@
---- third-party/google-benchmark/test/CMakeLists.txt.orig	2019-12-20 21:45:20 UTC
-+++ third-party/google-benchmark/test/CMakeLists.txt
-@@ -1,6 +1,6 @@
- # Enable the tests
- 
--find_package(Threads REQUIRED)
-+find_package(Threads)
- include(CheckCXXCompilerFlag)
- 
- # NOTE: Some tests use `<cassert>` to perform the test. Therefore we must