refactor(semantic): remove unused current_symbol_flags #24611

Job	Run time
Benchmark (lexer)	1m 17s
Build Linter Benchmark	2m 42s
Benchmark (parser)	1m 28s
Benchmark (transformer)	2m 0s
Benchmark (isolated_declarations)	1m 56s
Benchmark (semantic)	2m 1s
Benchmark (minifier)	2m 1s
Benchmark (codegen)	2m 31s
Benchmark linter (0)	3m 0s
Benchmark linter (1)	1m 44s
Upload benchmarks	17s
	20m 57s

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