fix: Remove obsolete forward declaration AbstractVolume #19160

Job	Run time
cuda	2m 22s
linux_ubuntu	5m 5s
linux_ubuntu_extra (ubuntu2004, 17)	11m 35s
linux-nodeps (centos8-lcg100-gcc10)	13m 6s
linux_ubuntu_extra (ubuntu2204_cpp20, 20)	6m 48s
macos	10m 31s
linux_ubuntu_extra (ubuntu2204_clang, 17)	5m 44s
sycl	2m 50s
linux_physmon	31m 25s
linux_examples_test	11m 43s
linux_physmon_perf_report	0s
	1h 41m 9s

Provide feedback