Revert "Add FastVector for simple dynamic vector cases." This reverts commit 4d45e7dc7553b071b0c2a054bdb59bfd844012fe. Reason for revert: Memory leak detected during roll in https://ci.chromium.org/p/chromium/builders/luci.chromium.try/linux_chromium_asan_rel_ng/101750 Original change's description: > Add FastVector for simple dynamic vector cases. > > This optimized vector keeps an initial fixed size storage but has > unbounded growth like a normal std::vector. It operates like a > FixedVector initially but then switches the storage to an allocated > pool when the element count exceeds the array limit. > > This gives fast performance in the small case since no dynamic > allocation is needed. It also handles the "slow" big case. > > Bug: angleproject:2763 > Change-Id: I9c002b205bd4ac9fc171d1fdc42bc8ea5fe8dabe > Reviewed-on: https://chromium-review.googlesource.com/1227794 > Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> > Commit-Queue: Jamie Madill <jmadill@chromium.org> TBR=ynovikov@chromium.org,jmadill@chromium.org,syoussefi@chromium.org Change-Id: Iaec76244cc736a8469b80bfc8534fb0fd6c49e11 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: angleproject:2763 Reviewed-on: https://chromium-review.googlesource.com/1232978 Reviewed-by: Yuly Novikov <ynovikov@chromium.org> Commit-Queue: Yuly Novikov <ynovikov@chromium.org>