chore: drop redundant lexer pre-build — upstream f936eb1 fixed it independently

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

scripts/kicad/build-kicad-target.sh

@@ -396,20 +396,6 @@ emcmake cmake "${KICAD_DIR}" \
     -DHAVE_STRCASECMP=1 \
     -DHAVE_STRNCASECMP=1
 
-# Step 7.05: Generated lexer headers (pcb_lexer.h & co) are emitted by
-# make_lexer custom commands attached to the consuming library target. The
-# embind compile below includes them via -I${KICAD_BUILD}/common, so on a
-# FRESH build tree that library must build first (step 8 depends on it
-# anyway — this only reorders work, it doesn't add any).
-case "${APP_NAME}" in
-    pcbnew)
-        if [ ! -f "${KICAD_BUILD}/common/pcb_lexer.h" ]; then
-            log_info "Generating lexers (building pcbcommon before embind)..."
-            ( cd "${KICAD_BUILD}" && emmake make -j${JOBS} pcbcommon )
-        fi
-        ;;
-esac
-
 # Step 7.1: Compile Embind bindings (after CMake so config.h exists)
 # Exposes KiCad objects to JavaScript for future Pyodide integration.
 # When no app-specific source exists, build an empty object so the linker line