Remove librpma engine as librpma library is no longer maintained #907

Job	Run time
build-containers (debian, debian, bookworm, x86_64)	12m 47s
build (linux-gcc)	13m 6s
build (linux-clang)	13m 49s
build-containers (fedora, fedora, 40, x86_64)	13m 53s
build (macos)	16m 7s
build-containers (alma, almalinux, 9, x86_64)	13m 48s
build (linux-i686-gcc)	13m 3s
build-containers (oracle, oraclelinux, 9, x86_64)	13m 57s
build (android)	39s
build-containers (rocky, rockylinux, 9, x86_64)	14m 5s
build (windows-cygwin-64)	17m 21s
build-containers (ubuntu, ubuntu, noble, i686)	13m 4s
build (windows-cygwin-32)	17m 45s
build-containers (ubuntu, ubuntu, noble, x86_64)	14m 16s
build (windows-msys2-64)	13m 33s
build (android-recovery, ubuntu-22.04, aarch64-linux-android32)	1m 4s
	3h 22m 17s

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