fix the withdrawn amount unit

[jennijuju]

fixes #7561
shown in FIL

$lsp actor withdraw --confidence=1 0.0000000000004
Requested rewards withdrawal in message bafy2bzacebsv3z5ttd6mwyzs7xtvip2mwwzftrl2hgry2z4ljfailkeis7mbm
waiting for 1 epochs for confirmation..
Successfully withdrew 4e-13 FIL 


$lsp actor withdraw --confidence=1 200 
Requested rewards withdrawal in message bafy2bzacebgzb4fko4a2zdp4xmtoykukmcqovkmi3tursej7mtwmbabr3xp56
waiting for 1 epochs for confirmation..
Successfully withdrew 200 FIL 

[codecov]

Codecov Report

Merging #7563 (dc6bd2b) into master (6607019) will decrease coverage by 0.07%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #7563      +/-   ##
==========================================
- Coverage   39.85%   39.78%   -0.08%     
==========================================
  Files         633      633              
  Lines       67098    67098              
==========================================
- Hits        26742    26694      -48     
- Misses      35758    35798      +40     
- Partials     4598     4606       +8     

Impacted Files	Coverage Δ
cli/wallet.go	0.00% <0.00%> (ø)
cmd/lotus-miner/actor.go	7.92% <0.00%> (ø)
cmd/lotus-shed/actor.go	0.00% <0.00%> (ø)
chain/stmgr/call.go	67.87% <0.00%> (-7.28%)	⬇️
chain/events/observer.go	71.64% <0.00%> (-6.72%)	⬇️
chain/stmgr/execute.go	86.95% <0.00%> (-4.35%)	⬇️
markets/storageadapter/ondealsectorcommitted.go	77.33% <0.00%> (-4.00%)	⬇️
node/hello/hello.go	63.63% <0.00%> (-3.41%)	⬇️
miner/miner.go	56.95% <0.00%> (-1.66%)	⬇️
itests/kit/blockminer.go	93.65% <0.00%> (-1.59%)	⬇️
... and 13 more

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[Kubuxu]

I wouldn't call it Parse, rather Format. Parse is usually reserved from going from string -> number.

[jennijuju]

removed this function since we have a better thing already!

[Kubuxu]

I think types.FIL(withdrawn) should already fulfil the same purpose.
Please reject the review if for some reason it doesn't.

[jennijuju]

I think types.FIL(withdrawn) should already fulfil the same purpose.
Please reject the review if for some reason it doesn't.

You are totally right! updated!