Don't install fc

While technically fc is a standalone library, I don't consider eosio to be the distribution mechanism that one would obtain fc through. Plus, our fork of fc has some changes that may not be expected for general case users. Remove it from being installed

libraries/fc/CMakeLists.txt

@@ -119,14 +119,7 @@ set( sources
 #list(APPEND sources "${CMAKE_CURRENT_BINARY_DIR}/git_revision.cpp")
 list(APPEND sources ${fc_headers})
 
-setup_library( fc SOURCES ${sources} LIBRARY_TYPE STATIC )
-
-INSTALL( TARGETS fc
-   RUNTIME DESTINATION bin
-   LIBRARY DESTINATION lib
-   ARCHIVE DESTINATION lib
-)
-INSTALL( DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/include DESTINATION . )
+setup_library( fc SOURCES ${sources} LIBRARY_TYPE STATIC DONT_INSTALL_LIBRARY )
   
 IF(APPLE)
   # As of 10.10 yosemite, the OpenSSL static libraries shipped with os x have a dependency