Disable CPU optimizations not supported by all x86_64 systems.

--- a/cmake/modules/SIMDExt.cmake	2017-03-23 22:22:58.254071694 +0100
+++ b/cmake/modules/SIMDExt.cmake	2017-03-23 22:23:22.446848845 +0100
@@ -5,11 +5,6 @@
 # HAVE_ARM_NEON
 # HAVE_INTEL_SSE
 # HAVE_INTEL_SSE2
-# HAVE_INTEL_SSE3
-# HAVE_INTEL_SSSE3
-# HAVE_INTEL_PCLMUL
-# HAVE_INTEL_SSE4_1
-# HAVE_INTEL_SSE4_2
 #
 # SIMD_COMPILE_FLAGS
 #
@@ -85,26 +80,6 @@
       if(HAVE_INTEL_SSE2)
         set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse2")
       endif()
-      CHECK_C_COMPILER_FLAG(-msse3 HAVE_INTEL_SSE3)
-      if(HAVE_INTEL_SSE3)
-        set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse3")
-      endif()
-      CHECK_C_COMPILER_FLAG(-mssse3 HAVE_INTEL_SSSE3)
-      if(HAVE_INTEL_SSSE3)
-        set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -mssse3")
-      endif()
-      CHECK_C_COMPILER_FLAG(-mpclmul HAVE_INTEL_PCLMUL)
-      if(HAVE_INTEL_PCLMUL)
-        set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -mpclmul")
-      endif()
-      CHECK_C_COMPILER_FLAG(-msse4.1 HAVE_INTEL_SSE4_1)
-      if(HAVE_INTEL_SSE4_1)
-        set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse4.1")
-      endif()
-      CHECK_C_COMPILER_FLAG(-msse4.2 HAVE_INTEL_SSE4_2)
-      if(HAVE_INTEL_SSE4_2)
-        set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse4.2")
-      endif()
     endif(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64|x86_64|AMD64")
   endif(CMAKE_SYSTEM_PROCESSOR MATCHES "i686|amd64|x86_64|AMD64")
 elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "(powerpc|ppc)64le")
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<tr><td><span title='2022-11-24 22:22:39 +0200'>2022-11-24</span></td><td><a href='/guix/commit/gnu/packages/firmware.scm?id=b3beeaa30981e49070ff28434b69aa234069bd2d'>gnu: arm-trusted-firmware: Remove blobs in a snippet.</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2022-11-24 22:22:38 +0200'>2022-11-24</span></td><td><a href='/guix/commit/gnu/packages/firmware.scm?id=255450bed2b24b9dd21745e2675aa0ecf38a2a79'>gnu: arm-trusted-firmware: Update to 2.8.</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2022-11-21 22:01:11 +0100'>2022-11-21</span></td><td><a href='/guix/commit/gnu/packages/firmware.scm?id=ebd651c32a8bf2f37e95f2ea63f9de715f3d0e83'>gnu: fwupd: Move some inputs to propagated-inputs.</a><span class='msg-avail'>...</span></td><td>Petr Hodina</td></tr>
<tr><td><span title='2022-09-01 16:26:29 -0400'>2022-09-01</span></td><td><a href='/guix/commit/gnu/packages/firmware.scm?id=4d361a6b5147e3f91573e9d3c8c540a233e7e142'>gnu: fwupd: Disable remotes by default.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-08-31 13:04:46 +0200'>2022-08-31</span></td><td><a href='/guix/commit/gnu/packages/firmware.scm?id=23152ff70f0ed4966d8207846f54c793d7cb4f86'>gnu: Add fwupd.</a><span class='msg-avail'>...</span></td><td>Petr Hodina</td></tr>
<tr><td><span title='2022-08-14 02:00:00 +0200'>2022-08-14</span></td><td><a href='/guix/commit/gnu/packages/firmware.scm?id=5a9c2abf9ecd47f4481c68cc5e57a85c84313645'>gnu: Remove ‘open source’ from package descriptions.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>