Merge pull request #1487 from Noschvie/patch-13

Remove unnecessary library setting.
This could change in the future.

Author: Staars

docs/I2S-Audio_ESP32.md

@@ -8,8 +8,6 @@
     build_flags                 = ${env:tasmota32_base.build_flags}
                                   -DUSE_I2S_ALL
     ```
-    Also requires `lib_extra_dirs = lib/lib_audio` added to the build environment
-
     You can create smaller firmware versions with selective use of the build flags:
     ```
       #define USE_I2S ;             base flag - always needed