Revert "Zero stream before writing a ReadWrite module. Fix #368"
Revert "Zero stream before writing a ReadWrite module. Fix #368"

This reverts commit be6db1feeeef9c56c2eb18449e695f563f1d957b.

SiliconStudio/Mono.Cecil,fnajera-rac-de/cecil,jbevain/cecil,sailro/cecil,mono/cecil