t-beam supreme: minor GPS and BME fixes

Fixed GPS initial state to default to off after init.
Removed redundant current limit define

variants/lilygo_tbeam_supreme_SX1262/platformio.ini

@@ -12,7 +12,6 @@ build_flags =
   -D RADIO_CLASS=CustomSX1262
   -D WRAPPER_CLASS=CustomSX1262Wrapper
   -D DISPLAY_CLASS=SH1106Display
-  -D SX126X_CURRENT_LIMIT=140
   -D SX126X_RX_BOOSTED_GAIN=1
   -D SX126X_CURRENT_LIMIT=140
 build_src_filter = ${esp32_base.build_src_filter}