Commit d29ed70

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Remove untested entries

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Original file line number	Diff line number	Diff line change
`@@ -394,50 +394,6 @@ while True:`
`394`	`394`	`noTone(5,1)`
`395`	`395`	```
`396`	`396`
`397`		`-### pulseIn()`
`398`		`-`
`399`		`-Example:`
`400`		`-`
`401`		-```python
`402`		`-import machine`
`403`		`-`
`404`		`-def pulseIn(pin, level, timeout=1000000):`
`405`		`- pulse_start = machine.time_pulse_us(machine.Pin(pin), level, timeout)`
`406`		`- pulse_end = machine.time_pulse_us(machine.Pin(pin), not level, timeout)`
`407`		`- return pulse_end - pulse_start`
`408`		-```
`409`		`-`
`410`		`-### shiftIn()`
`411`		`-`
`412`		`-Example:`
`413`		`-`
`414`		-```python
`415`		`-import machine`
`416`		`-`
`417`		`-def shiftIn(dataPin, clockPin, bitOrder=machine.MSBFIRST):`
`418`		`- value = 0`
`419`		`- for i in range(8):`
`420`		`- value \|= machine.Pin(dataPin).value() << (7 - i)`
`421`		`- machine.Pin(clockPin).value(1)`
`422`		`- machine.Pin(clockPin).value(0)`
`423`		`- return value`
`424`		-```
`425`		`-`
`426`		`-### shiftOut()`
`427`		`-`
`428`		`-Example:`
`429`		`-`
`430`		-```python
`431`		`-import machine`
`432`		`-`
`433`		`-def shiftOut(dataPin, clockPin, bitOrder=machine.MSBFIRST, value):`
`434`		`- for i in range(8):`
`435`		`- mask = 1 << i if bitOrder == machine.LSBFIRST else 1 << (7 - i)`
`436`		`- machine.Pin(dataPin).value(bool(value & mask))`
`437`		`- machine.Pin(clockPin).value(1)`
`438`		`- machine.Pin(clockPin).value(0)`
`439`		-```
`440`		`-`
`441`	`397`	`## Math`
`442`	`398`
`443`	`399`	`### abs()`

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