I think you misunderstand what EasyBCD is.
It is
not a replacement for the MS bootmgr, it's a utility for managing the contents of bootmgr's BCD store.
Removing EasyBCD will do absolutely
nothing to your system (except regain a few kB of disk space where you installed it).
You can
use EasyBCD to un-dual-boot your PC (if the boot is being controlled by bootmgr) by simply deleting the Linux entry from the BCD and subsequently removing or formatting Linux.
Beware however if this is a UEFI PC.
MS bootmgr does not allow dual-booting Linux, so you will have had to let Linux take control of the boot by substituting Grub over bootmgr to achieve a successful dual-boot.
In that case you'll need to "Repair" the boot with a Windows 10 Installation DVD
This article explains how you can recover the bootloader for the following Windows versions: Windows Vista, Windows 7, Windows 8, and Windows 10 using the setup DVD (installation DVD). If you don&#…
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so that bootmgr is reinstated as the controlling boot manager.
If you don't have an installation DVD (or flashdrive), you can create a functional equivalent of the repair facility it contains from W10
Control Panel > Backup and Recovery > Create Repair Disc.
See
EasyBCD and UEFI for details.