Remove out of date docs about building static libraries

Author: ChrisThrasher

README.md

@@ -60,11 +60,6 @@ The nice folks in the [SFML community](https://github.com/SFML/SFML#community) c
 
 Modify CMake options by adding them as configuration parameters (with a `-D` flag) or by modifying the contents of CMakeCache.txt and rebuilding.
 
-### Use Static Libraries
-
-By default SFML builds shared libraries and this default is inherited by your project.
-CMake's [`BUILD_SHARED_LIBS`](https://cmake.org/cmake/help/latest/variable/BUILD_SHARED_LIBS.html) option lets you pick static or shared libraries for the entire project.
-
 ### Change Compilers
 
 See the variety of [`CMAKE_<LANG>_COMPILER`](https://cmake.org/cmake/help/latest/variable/CMAKE_LANG_COMPILER.html) options.