tools: remove out-of-date code-cache-path comment
This commit removes the comment in cache_builder.cc
regarding the usage
of --code-cache-path
with configure.
Commit 14df42fd ("build: run mkcodecache
as an action") deprecated this option and it is always
set to yes (unless cross compiling).
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
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