remove duplicate symbol #15

Job	Run time
Build extension binaries / Generate matrix	34s
Build extension binaries / Windows (windows_amd64, x64-windows-static-md)	19m 37s
Build extension binaries / MacOS (osx_amd64, x86_64, x64-osx)	8m 9s
Build extension binaries / Linux (linux_amd64, ubuntu:18.04, x64-linux)	17m 1s
Build extension binaries / Windows (windows_amd64_rtools, x64-mingw-static)	50m 57s
Build extension binaries / DuckDB-Wasm (wasm_mvp, wasm32-emscripten)	4m 19s
Build extension binaries / MacOS (osx_arm64, arm64, arm64-osx)	5m 43s
Build extension binaries / Linux (linux_amd64_gcc4, quay.io/pypa/manylinux2014_x86_64, x64-linux)	5m 35s
Build extension binaries / DuckDB-Wasm (wasm_eh, wasm32-emscripten)	4m 10s
Build extension binaries / Linux (linux_arm64, ubuntu:18.04, arm64-linux)	19m 10s
Build extension binaries / DuckDB-Wasm (wasm_threads, wasm32-emscripten)	4m 6s
Deploy extension binaries / Generate matrix	23s
Deploy extension binaries / Deploy (linux_amd64)	28s
Deploy extension binaries / Deploy (linux_amd64_gcc4)	44s
Deploy extension binaries / Deploy (linux_arm64)	44s
Deploy extension binaries / Deploy (osx_amd64)	36s
Deploy extension binaries / Deploy (osx_arm64)	27s
Deploy extension binaries / Deploy (windows_amd64)	29s
Deploy extension binaries / Deploy (windows_amd64_rtools)	31s
	2h 23m 43s

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