Removing legacy python integration #228

Job	Run time
test (d2q9, float, same, true)	4m 18s
test (d2q9, float, same, false)	3m 48s
test (d2q9, float, half, true)	4m 9s
test (d2q9, float, half-shift, true)	4m 15s
test (d2q9, float, float, true)	4m 3s
test (d2q9, float, float, false)	3m 58s
test (d2q9, float, float-shift, true)	4m 11s
test (d2q9, float, float-shift, false)	4m 10s
test (d2q9, double, same, true)	4m 34s
test (d2q9, double, same, false)	3m 58s
test (d2q9, double, half, true)	4m 35s
test (d2q9, double, half-shift, true)	4m 17s
test (d2q9, double, float, true)	4m 19s
test (d2q9, double, float, false)	4m 0s
test (d2q9, double, float-shift, true)	4m 20s
test (d2q9, double, float-shift, false)	4m 3s
test (d2q9, double, double, true)	4m 37s
test (d2q9, double, double, false)	4m 0s
	1h 15m 35s

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