Remove debian/patches for v1.47.1-rc2 release #101

Job	Run time
Build and test with ASAN enabled	1m 38s
Build and test with clang	1m 13s
Cross-compile for Android (aarch64)	41s
Build and test with gcc	58s
Cross-compile for Android (armv7a)	36s
Cross-compile for Android (i686)	41s
Build and test with gcc -m32	1m 12s
Build and test on macOS	1m 13s
Cross-compile for Android (x86_64)	30s
Build and test with UBSAN enabled	1m 27s
Build mke2fs on Windows with mingw32	2m 19s
Build mke2fs on Windows with mingw64	2m 12s
	14m 40s

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