Fix stray absl string_view dependency. #4889

Job	Run time
CheckFormatAndBuildClean	1m 49s
ClangTidy	4m 10s
x86_64 test	3m 54s
KytheVerification	0s
arm64 test	4m 8s
MacOsBuild	3m 56s
KytheXrefs	0s
x86_64 test-clang	4m 11s
arm64 test-clang	4m 20s
📦 Pack Sources	5s
PrepareVSPlugin	2m 22s
x86_64 test-nortti	3m 38s
WindowsBuild	8m 21s
x86_64 test-c++20	3m 47s
x86_64 test-c++23	3m 28s
x86_64 smoke-test	12m 4s
arm64 smoke-test	12m 33s
x86_64 asan	5m 7s
x86_64 asan-clang	4m 48s
x86_64 compile	4m 38s
arm64 compile	3m 51s
x86_64 compile-clang	3m 5s
arm64 compile-clang	3m 49s
x86_64 compile-static	3m 31s
arm64 compile-static	3m 51s
x86_64 compile-static-clang	3m 18s
arm64 compile-static-clang	3m 52s
x86_64 clean	7m 31s
arm64 clean	6m 47s
Build and deploy GitHub pages	7s
📦 Release	0s
	2h 7m 1s

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