[PyROOT] Don't add gROOT and other globals manually to PyROOT via C++ #13523

Job	Run time
Upload Event Payload	8s
Windows 10 x64 Release	59m 26s
mac13 ARM64 LLVM_ENABLE_ASSERTIONS=On, builtin_zlib=ON	19m 34s
mac14 X64 LLVM_ENABLE_ASSERTIONS=On, CMAKE_CXX_STANDARD=20	51m 55s
fedora40 LLVM_ENABLE_ASSERTIONS=On, CMAKE_CXX_STANDARD=20	33m 49s
mac15 ARM64 LLVM_ENABLE_ASSERTIONS=On, CMAKE_CXX_STANDARD=20	27m 27s
Windows 10 x86 Release	56m 46s
fedora41 LLVM_ENABLE_ASSERTIONS=On	34m 51s
mac-beta ARM64 LLVM_ENABLE_ASSERTIONS=On, CMAKE_CXX_STANDARD=20	26m 21s
alma8 LLVM_ENABLE_ASSERTIONS=On	24m 40s
alma9 LLVM_ENABLE_ASSERTIONS=On, CMAKE_BUILD_TYPE=Debug	58m 11s
ubuntu20 LLVM_ENABLE_ASSERTIONS=On	46m 23s
ubuntu22 imt=Off, LLVM_ENABLE_ASSERTIONS=On, CMAKE_BUILD_TYPE=Debug	1h 26m 16s
ubuntu2404 LLVM_ENABLE_ASSERTIONS=On, CMAKE_BUILD_TYPE=Debug	1h 55m 23s
ubuntu2410 LLVM_ENABLE_ASSERTIONS=On, CMAKE_BUILD_TYPE=Debug	1h 6m 22s
debian125 LLVM_ENABLE_ASSERTIONS=On, CMAKE_CXX_STANDARD=20	43m 44s
alma9 modules_off runtime_cxxmodules=Off	20m 34s
alma9 march_native CMAKE_BUILD_TYPE=RelWithDebInfo, CMAKE_CXX_FLAGS=-march=native, CMAKE_C_FLAGS=-march=native, fortran=OFF	24m 3s
alma9 arm64 CMAKE_BUILD_TYPE=RelWithDebInfo, ccache=ON	34m 0s
alma9-clang clang LLVM_ENABLE_ASSERTIONS=On, CMAKE_C_COMPILER=clang, CMAKE_CXX_COMPILER=clang++	22m 26s
ubuntu2404-cuda gpu	21m 5s
	14h 33m 24s

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