Remove Bazel WORKSPACE setup. (#8509) #6825

Job	Run time
Build Linux C++ (11, g++-13)	1m 45s
Build Linux C++ (11, clang++-18)	1m 58s
Build Android (on Linux)	4m 53s
Build .NET Windows	29s
Build Linux C++ (14, g++-13)	1m 45s
Build Windows C++ (11)	3m 40s
Build .NET Windows (-p:UnsafeByteBuffer=true)	1m 33s
Check Generated Code (g++-13)	1m 2s
Build Windows C++ (14)	3m 45s
Build Linux C++ (14, clang++-18)	2m 2s
Check Generated Code (clang++-18)	1m 12s
Build Windows C++ (17)	4m 8s
Build Linux C++ (17, g++-13)	1m 57s
Build Linux C++ (17, clang++-18)	2m 18s
Build Windows C++ (20)	5m 33s
Check Generated Code on Windows	3m 54s
Build Linux C++ (20, g++-13)	2m 5s
Build Linux (g++-13)	1m 51s
Build Windows C++ (23)	5m 20s
Build Linux (clang++-18)	1m 58s
Build Linux C++ (20, clang++-18)	2m 38s
Build Linux C++ (23, g++-13)	2m 10s
Build Linux with out-of-source build location	1m 14s
Build Linux with -DFLATBUFFERS_NO_FILE_TESTS	1m 59s
Build Mac (for Intel)	1m 40s
Build Mac (universal build)	2m 24s
Build Windows 2019	4m 37s
Build Benchmarks (on Linux) (g++-13)	2m 48s
Build Go	1m 15s
Build Java	18s
Build Kotlin Linux	3m 6s
Build Kotlin MacOS	6m 50s
Build Python	55s
Build PHP	59s
Build Rust Linux	1m 42s
Build Rust Windows	1m 28s
Build Swift (5.8)	2m 11s
Build Swift Wasm	3m 24s
Build Swift (5.9)	2m 19s
Build TS	1m 19s
Build Swift (5.10)	2m 12s
Bazel	1m 36s
Build Dart	1m 12s
Build Nim	1m 10s
release-digests	0s
provenance	0s
	1h 44m 34s

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