remove libx264 lossless presets

It is simpler and more consistent to use "-preset $speed -qp 0" for
lossless. Also, the old presets encode slower.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

ffpresets/libx264-lossless_fast.ffpreset

-coder=0
-flags=+loop+cgop
-cmp=+chroma
-partitions=-parti8x8+parti4x4+partp8x8-partp4x4-partb8x8
-me_method=hex
-subq=3
-me_range=16
-g=250
-keyint_min=25
-sc_threshold=40
-i_qfactor=0.71
-b_strategy=1
-qcomp=0.6
-qmin=0
-qmax=69
-qdiff=4
-directpred=1
-flags2=+fastpskip
-cqp=0
-wpredp=0

ffpresets/libx264-lossless_max.ffpreset

-coder=1
-flags=+loop+cgop
-cmp=+chroma
-partitions=+parti8x8+parti4x4+partp8x8+partp4x4-partb8x8
-me_method=esa
-subq=8
-me_range=16
-g=250
-keyint_min=25
-sc_threshold=40
-i_qfactor=0.71
-b_strategy=1
-qcomp=0.6
-qmin=0
-qmax=69
-qdiff=4
-refs=16
-directpred=1
-flags2=+mixed_refs+dct8x8+fastpskip
-cqp=0
-wpredp=2

ffpresets/libx264-lossless_medium.ffpreset

-coder=1
-flags=+loop+cgop
-cmp=+chroma
-partitions=-parti8x8+parti4x4+partp8x8+partp4x4-partb8x8
-me_method=hex
-subq=5
-me_range=16
-g=250
-keyint_min=25
-sc_threshold=40
-i_qfactor=0.71
-b_strategy=1
-qcomp=0.6
-qmin=0
-qmax=69
-qdiff=4
-directpred=1
-flags2=+fastpskip
-cqp=0
-wpredp=2

ffpresets/libx264-lossless_slow.ffpreset

-coder=1
-flags=+loop+cgop
-cmp=+chroma
-partitions=+parti8x8+parti4x4+partp8x8+partp4x4-partb8x8
-me_method=umh
-subq=6
-me_range=16
-g=250
-keyint_min=25
-sc_threshold=40
-i_qfactor=0.71
-b_strategy=1
-qcomp=0.6
-qmin=0
-qmax=69
-qdiff=4
-refs=2
-directpred=1
-flags2=+dct8x8+fastpskip
-cqp=0
-wpredp=2

ffpresets/libx264-lossless_slower.ffpreset

-coder=1
-flags=+loop+cgop
-cmp=+chroma
-partitions=+parti8x8+parti4x4+partp8x8+partp4x4-partb8x8
-me_method=umh
-subq=8
-me_range=16
-g=250
-keyint_min=25
-sc_threshold=40
-i_qfactor=0.71
-b_strategy=1
-qcomp=0.6
-qmin=0
-qmax=69
-qdiff=4
-refs=4
-directpred=1
-flags2=+mixed_refs+dct8x8+fastpskip
-cqp=0
-wpredp=2

ffpresets/libx264-lossless_ultrafast.ffpreset

-coder=0
-flags=+loop+cgop
-cmp=+chroma
-partitions=-parti8x8-parti4x4-partp8x8-partp4x4-partb8x8
-me_method=dia
-subq=0
-me_range=16
-g=250
-keyint_min=25
-sc_threshold=40
-i_qfactor=0.71
-b_strategy=1
-qcomp=0.6
-qmin=0
-qmax=69
-qdiff=4
-directpred=1
-flags2=+fastpskip
-cqp=0