Drop utf8 tweaks in build files

.travis.yml

@@ -43,10 +43,6 @@ before_script:
   - cat ${TRAVIS_BUILD_DIR}/Marlin/src/inc/_Version.h
   #
 script:
-  #
-  # Fix include path problem in platformio.ini, U8glib-HAL_ID1932/src/lib/u8g.h
-  #
-  - find Marlin/ -name "*.h" | while read a; do sed -e 's|clib/u8g.h|u8g.h|' -i "$a"; done
   #
   # Backup pins_RAMPS.h
   #

platformio.ini

@@ -27,7 +27,6 @@ default_src_filter = +<src/*> -<src/config>
 build_flags = -fmax-errors=5
   -g
   -ggdb
-  -I${platformio.libdeps_dir}/U8glib-HAL_ID1932/src/lib/
 lib_deps =
   https://github.com/MarlinFirmware/U8glib-HAL/archive/dev.zip
   LiquidCrystal_I2C@1.1.2