Remove exported api symbols and other windows related defines

Test: compiles
Change-Id: Ied99d7c80aa600091c105c3af478eee7af79f352
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>

• halimpl/bcm2079x/adaptation/userial_linux.c[diff]
• halimpl/bcm2079x/gki/common/gki.h[diff]
• halimpl/bcm2079x/gki/common/gki_common.h[diff]
• halimpl/bcm2079x/gki/common/gki_debug.c[diff]
• halimpl/bcm2079x/gki/ulinux/gki_int.h[diff]
• halimpl/bcm2079x/include/userial.h[diff]
• src/gki/common/gki.h[diff]
• src/gki/common/gki_common.h[diff]
• src/gki/common/gki_debug.c[diff]
• src/gki/ulinux/gki_int.h[diff]
• src/hal/include/gki_hal_target.h[diff]
• src/hal/include/nfc_hal_api.h[diff]
• src/include/bt_trace.h[diff]
• src/include/gki_target.h[diff]
• src/include/nfc_target.h[diff]
• src/nfa/dm/nfa_dm_api.c[diff]
• src/nfa/hci/nfa_hci_api.c[diff]
• src/nfa/include/nfa_api.h[diff]
• src/nfa/include/nfa_ce_api.h[diff]
• src/nfa/include/nfa_ee_api.h[diff]
• src/nfa/include/nfa_hci_api.h[diff]
• src/nfa/include/nfa_mem_co.h[diff]
• src/nfa/include/nfa_nv_ci.h[diff]
• src/nfa/include/nfa_nv_co.h[diff]
• src/nfa/include/nfa_p2p_api.h[diff]
• src/nfa/include/nfa_rw_api.h[diff]
• src/nfa/include/nfa_snep_api.h[diff]
• src/nfa/int/nfa_sys.h[diff]
• src/nfc/include/ce_api.h[diff]
• src/nfc/include/llcp_api.h[diff]
• src/nfc/include/ndef_utils.h[diff]
• src/nfc/include/nfc_api.h[diff]
• src/nfc/include/rw_api.h[diff]
• src/nfc/int/ce_int.h[diff]
• src/nfc/int/llcp_int.h[diff]
• src/nfc/int/nfc_int.h[diff]
• src/nfc/int/rw_int.h[diff]
• src/nfc/llcp/llcp_api.c[diff]
• src/nfc/nfc/nfc_utils.c[diff]
• src/nfc/tags/ce_t4t.c[diff]
• src/udrv/include/upio.h[diff]