Please excuse my english, I have a macbook air 2013 which dual-boots Kali and Mojave.
The macbook when powered on boots into Kali and if i wish to use Mojave, i boot holding the option key.

Recently, wishing to remove Kali and turn my mac back into a single boot, I have deleted the Kali partition from Mojave using DiskUtility by simply selecting the 64GB Kali partition and clicking the minus "-" sign, then being unable to resize my 64 GB Mojave partition, i tried rebooting hoping that the system would auto-reclaim the space. But instead, the mac can no longer be booted into MacOS, the only option showing is Internet Recovery.

What I've tried
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I've gone into internet recovery mode.The "Reinstall OS X" option does not show any disks at the "Select disk to install to" screen though the 64 GB Mojave partition can be found in disk utility and terminal using the `diskutil list` command.  

***Note: The 64 GB Kali partition is not found in DiskUtility and diskutil list.***

Problems
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* Cannot boot into Mojave anymore.
* Cannot see the 64 GB Kali partition.

Desired results
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* Boot into Mojave with disk size to full 128 GB as single boot,
removing GRUB.

Could you please help provide a step by step solution to solve this problem ? Any help is much appreciated, thank you !

Images
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Please find images below to help troubleshoot, please do feel free to request for additional captures.

Terminal with command `gpt -r show /dev/disk0`:<https://imgur.com/s3ZTx3e>

Terminal with command `diskutil list`: <https://imgur.com/nFUeAxg>

DiskUtility Apple SSD: <https://imgur.com/KbtAR4a>

DiskUtility\_disk0s2: <https://imgur.com/lSoROpT>

DiskUtility\_disk03: <https://imgur.com/JxTJaeZ>

DiskUtility\_MacOSBaseSystem: <https://imgur.com/q9iHA0R>

Boot
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Booting without pressing any key: <https://imgur.com/2xtZIye>

Booting with Alt/Option key pressed: <https://imgur.com/iSZsaJa>