Revert "Fix memory leak in decode_webp (#8712)" (#8723) #3570

Job	Run time
unittests-extended	0s
onnx / linux-job	6m 4s
unittests-linux (3.10, linux.12xlarge, cpu) / linux-job	22m 58s
unittests-linux (3.11, linux.12xlarge, cpu) / linux-job	21m 12s
unittests-linux (3.12, linux.12xlarge, cpu) / linux-job	22m 8s
unittests-linux (3.9, linux.12xlarge, cpu) / linux-job	22m 57s
unittests-linux (3.9, linux.g5.4xlarge.nvidia.gpu, cuda, 11.8) / linux-job	6m 56s
unittests-macos (3.10, macos-m1-stable) / macos-job	27m 10s
unittests-macos (3.11, macos-m1-stable) / macos-job	21m 29s
unittests-macos (3.12, macos-m1-stable) / macos-job	26m 50s
unittests-macos (3.9, macos-m1-stable) / macos-job	25m 35s
unittests-windows (3.10, windows.4xlarge, cpu) / windows-job	54m 36s
unittests-windows (3.11, windows.4xlarge, cpu) / windows-job	46m 0s
unittests-windows (3.12, windows.4xlarge, cpu) / windows-job	51m 35s
unittests-windows (3.9, windows.4xlarge, cpu) / windows-job	51m 24s
unittests-windows (3.9, windows.g5.4xlarge.nvidia.gpu, cuda, 11.8) / windows-job	5m 9s
	6h 52m 3s

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