Remove librpma engine as librpma library is no longer maintained #910

Job	Run time
build-containers (debian, debian, bookworm, x86_64)	12m 36s
build (linux-gcc)	13m 3s
build-containers (fedora, fedora, 40, x86_64)	14m 18s
build (linux-clang)	11m 50s
build-containers (alma, almalinux, 9, x86_64)	13m 59s
build (macos)	12m 45s
build-containers (oracle, oraclelinux, 9, x86_64)	14m 5s
build (linux-i686-gcc)	12m 46s
build-containers (rocky, rockylinux, 9, x86_64)	14m 4s
build (android)	32s
build-containers (ubuntu, ubuntu, noble, i686)	12m 57s
build (windows-cygwin-64)	16m 10s
build-containers (ubuntu, ubuntu, noble, x86_64)	13m 29s
build (windows-cygwin-32)	15m 28s
build (windows-msys2-64)	12m 54s
build (android-recovery, ubuntu-22.04, aarch64-linux-android32)	38s
	3h 11m 34s

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