Filesystem /boot 100% usage after patching to 19.16

Recently patched our ODA from 19.14 to 19.16 and the filesystem /boot become 100% occupied, is there any files in the folder that can be removed to free up some space?

[oracle@cjhoda04 ~]$ df -h /boot
Filesystem   Size Used Avail Use% Mounted on
/dev/sda1    474M 454M   0 100% /boot
[oracle@cjhoda04 ~]$ ls /boot
config-4.14.35-2025.404.1.2.el7uek.x86_64        initrd-4.1.12-124.18.6.el6uek.x86_64kdump.img
config-4.14.35-2047.510.5.4.el7uek.x86_64        initrd-4.1.12-124.20.3.el6uek.x86_64kdump.img
config-4.14.35-2047.515.3.el7uek.x86_64         initrd-4.1.12-124.30.1.el6uek.x86_64kdump.img
efi                           initrd-4.1.12-124.33.4.el6uek.x86_64kdump.img
extlinux                         lost+found
grub                           symvers-4.14.35-2025.404.1.2.el7uek.x86_64.gz
grub2                          symvers-4.14.35-2047.510.5.4.el7uek.x86_64.gz
initramfs-0-rescue-be281a62c28c1a52888dddc100000018.img symvers-4.14.35-2047.515.3.el7uek.x86_64.gz
initramfs-4.14.35-2025.404.1.2.el7uek.x86_64.img     System.map-4.14.35-2025.404.1.2.el7uek.x86_64
initramfs-4.14.35-2025.404.1.2.el7uek.x86_64kdump.img  System.map-4.14.35-2047.510.5.4.el7uek.x86_64
initramfs-4.14.35-2047.510.5.4.el7uek.x86_64.img     System.map-4.14.35-2047.515.3.el7uek.x86_64
initramfs-4.14.35-2047.510.5.4.el7uek.x86_64kdump.img  vmlinuz-0-rescue-be281a62c28c1a52888dddc100000018
initramfs-4.14.35-2047.515.3.el7uek.x86_64.img      vmlinuz-4.14.35-2025.404.1.2.el7uek.x86_64
initramfs-4.14.35-2047.515.3.el7uek.x86_64kdump.img   vmlinuz-4.14.35-2047.510.5.4.el7uek.x86_64
initramfs-redhat-upgrade-tool.img            vmlinuz-4.14.35-2047.515.3.el7uek.x86_64
initrd-2.6.39-400.276.1.el6uek.x86_64kdump.img      vmlinuz-redhat-upgrade-tool
initrd-4.1.12-112.16.8.el6uek.x86_64kdump.img