Remove obsolete bsec2 linker flag from GAT562 platformio.ini

The custom linker flag for bsec2 library path is no longer needed since the functionality was updated in PR #6712. This commit removes the redundant -L flag to align with the latest build configuration.

Co-authored-by: Austin <[email protected]>

Author: hayschan

variants/gat562_mesh_trial_tracker/platformio.ini

@@ -4,7 +4,6 @@ extends = nrf52840_base
 board = gat562_mesh_trial_tracker
 board_check = true
 build_flags = ${nrf52840_base.build_flags} -Ivariants/gat562_mesh_trial_tracker -D GAT562_MESH_TRIAL_TRACKER
-  -L "${platformio.libdeps_dir}/${this.__env__}/bsec2/src/cortex-m4/fpv4-sp-d16-hard"
   -DGPS_POWER_TOGGLE ; comment this line to disable triple press function on the user button to turn off gps entirely.
   -DRADIOLIB_EXCLUDE_SX128X=1
   -DRADIOLIB_EXCLUDE_SX127X=1