[RMV] Bematech 4200TH hinting functions and unused functions

[DiegoParadeda]

Solves https://github.com/base4sistemas/pyescpos/issues/31

Test code:

from pyescpos.conn.win32 import Win32Raw as Connection
from pyescpos import barcode
from pyescpos.impl.bematech import MP4200TH

conn = Connection.create('MP-4200 TH') # printer name (on windows 10)
impressora = MP4200TH(conn)
impressora.init()


impressora.text("Hello World! 1\nLine")
impressora.lf()

impressora.set_condensed(1)
impressora.text("Hello World! condensed\nLine")
impressora.set_condensed(0)
impressora.lf()

impressora.set_expanded(1)
impressora.text("Hello World! expanded\nLine")
impressora.set_expanded(0)
impressora.lf()

impressora.code128(
        '0123456789',
        barcode_height=96,
        barcode_width=barcode.BARCODE_DOUBLE_WIDTH,
        barcode_hri=barcode.BARCODE_HRI_BOTTOM
    )
impressora.lf()

impressora.ean13(
        '4007817525074',
        barcode_height=120,
        barcode_width=barcode.BARCODE_NORMAL_WIDTH,
        barcode_hri=barcode.BARCODE_HRI_TOP
    )
impressora.cut()

Printer used: