Revert "Fixes CalculateOrderQuantity regression bug from 5301d81"
Revert "Fixes CalculateOrderQuantity regression bug from 5301d81"

This reverts commit 08181aa8c8dc6b4c45fde11cddc7c2778e41dd05.

This commit broke several regression tests relating to the SetHoldings function and should be reviewed further.

devalkeralia/Lean,squideyes/Lean,AnObfuscator/Lean,kaffeebrauer/Lean,QuantConnect/Lean,Jay-Jay-D/LeanSTP,Phoenix1271/Lean,FrancisGauthier/Lean,JKarathiya/Lean,redmeros/Lean,StefanoRaggi/Lean,FrancisGauthier/Lean,young-zhang/Lean,jameschch/Lean,AnObfuscator/Lean,Mendelone/forex_trading,AnshulYADAV007/Lean,andrewhart098/Lean,jameschch/Lean,bizcad/Lean,andrewhart098/Lean,FrancisGauthier/Lean,StefanoRaggi/Lean,devalkeralia/Lean,young-zhang/Lean,AlexCatarino/Lean,AnshulYADAV007/Lean,Phoenix1271/Lean,JKarathiya/Lean,kaffeebrauer/Lean,tomhunter-gh/Lean,bizcad/Lean,redmeros/Lean,squideyes/Lean,devalkeralia/Lean,kaffeebrauer/Lean,jameschch/Lean,mabeale/Lean,StefanoRaggi/Lean,JKarathiya/Lean,tomhunter-gh/Lean,young-zhang/Lean,Jay-Jay-D/LeanSTP,Phoenix1271/Lean,QuantConnect/Lean,AlexCatarino/Lean,squideyes/Lean,redmeros/Lean,Jay-Jay-D/LeanSTP,QuantConnect/Lean,AlexCatarino/Lean,jameschch/Lean,AnshulYADAV007/Lean,kaffeebrauer/Lean,squideyes/Lean,JKarathiya/Lean,andrewhart098/Lean,AnObfuscator/Lean,mabeale/Lean,tomhunter-gh/Lean,FrancisGauthier/Lean,mabeale/Lean,kaffeebrauer/Lean,Phoenix1271/Lean,Mendelone/forex_trading,andrewhart098/Lean,StefanoRaggi/Lean,Jay-Jay-D/LeanSTP,AnshulYADAV007/Lean,Mendelone/forex_trading,Mendelone/forex_trading,devalkeralia/Lean,young-zhang/Lean,Jay-Jay-D/LeanSTP,AlexCatarino/Lean,mabeale/Lean,bizcad/Lean,AnshulYADAV007/Lean,StefanoRaggi/Lean,jameschch/Lean,AnObfuscator/Lean,bizcad/Lean,redmeros/Lean,tomhunter-gh/Lean,QuantConnect/Lean