Remove CMake install command for modulewrapper.

I think it never picked up the fix in
https://boringssl-review.googlesource.com/c/boringssl/+/52345 for older
CMakes, but it doesn't have much reason to be part of the install in the
first place.

Bug: 524
Change-Id: Ifbb898b1e4686194c85e9902ee3d59d83b55b78a
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/54786
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>

util/fipstools/acvp/modulewrapper/CMakeLists.txt

@@ -7,7 +7,6 @@ if(FIPS)
     main.cc
     modulewrapper.cc
   )
-  install(TARGETS modulewrapper)
 
   add_dependencies(modulewrapper global_target)