remove old readme content

Author: max-sixty

README.md

@@ -186,29 +186,6 @@ See [Configurations.md](Configurations.md) for details.
 * If you're having issues compiling Rustfmt (or compile errors when trying to
   install), make sure you have the most recent version of Rust installed.
 
-* If you get an error like `error while loading shared libraries` while starting
-  up rustfmt you should try the following:
-
-  On Linux:
-
-  ```
-  export LD_LIBRARY_PATH=$(rustc --print sysroot)/lib:$LD_LIBRARY_PATH
-  ```
-
-  On MacOS:
-
-  ```
-  export DYLD_LIBRARY_PATH=$(rustc --print sysroot)/lib:$DYLD_LIBRARY_PATH
-  ```
-
-  On Windows (Git Bash/Mingw):
-
-  ```
-  export PATH=$(rustc --print sysroot)/lib/rustlib/x86_64-pc-windows-gnu/lib/:$PATH
-  ```
-
-  (Substitute `x86_64` by `i686` and `gnu` by `msvc` depending on which version of rustc was used to install rustfmt).
-
 * You can change the way rustfmt emits the changes with the --emit flag:
 
   Example: