[core] Delete pre-C++17 code in RRangeCast #16196

Job	Run time
Upload Event Payload	4s
Windows 10 x64 Release	1h 2m 29s
mac13 ARM64 LLVM_ENABLE_ASSERTIONS=On, builtin_zlib=ON	41m 56s
fedora40 LLVM_ENABLE_ASSERTIONS=On, CMAKE_CXX_STANDARD=20	1h 22m 13s
Windows 10 x86 Release	1h 13m 16s
mac14 X64 LLVM_ENABLE_ASSERTIONS=On, CMAKE_CXX_STANDARD=20	1h 32m 0s
fedora41 LLVM_ENABLE_ASSERTIONS=On	1h 1m 0s
alma8 LLVM_ENABLE_ASSERTIONS=On	1h 24m 25s
mac15 ARM64 LLVM_ENABLE_ASSERTIONS=On, CMAKE_CXX_STANDARD=20	45m 50s
alma9 LLVM_ENABLE_ASSERTIONS=On, CMAKE_BUILD_TYPE=Debug	1h 21m 6s
mac-beta ARM64 LLVM_ENABLE_ASSERTIONS=On, CMAKE_CXX_STANDARD=20	1h 5m 2s
ubuntu22 imt=Off, LLVM_ENABLE_ASSERTIONS=On, CMAKE_BUILD_TYPE=Debug	2h 11m 51s
ubuntu2404 LLVM_ENABLE_ASSERTIONS=On, CMAKE_BUILD_TYPE=Debug	1h 24m 36s
ubuntu2410 LLVM_ENABLE_ASSERTIONS=On, CMAKE_BUILD_TYPE=Debug	1h 35m 39s
debian125 LLVM_ENABLE_ASSERTIONS=On, CMAKE_CXX_STANDARD=20	46m 35s
alma9 modules_off runtime_cxxmodules=Off	48m 23s
alma9 march_native CMAKE_BUILD_TYPE=RelWithDebInfo, CMAKE_CXX_FLAGS=-march=native, CMAKE_C_FLAGS=-march=native, fortran=OFF	1h 20m 31s
alma9 arm64 CMAKE_BUILD_TYPE=RelWithDebInfo	1h 5m 59s
alma9-clang clang LLVM_ENABLE_ASSERTIONS=On, CMAKE_C_COMPILER=clang, CMAKE_CXX_COMPILER=clang++	45m 25s
	21h 28m 20s

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