[libFuzzer] Remove extra semicolons

Summary:
Remove extra semicolons so that libFuzzer can compile with
-Werror -Wextra-semi

Reviewers: Dor1s, morehouse, thakis

Reviewed By: Dor1s, morehouse

Subscribers: jdoerfert, #sanitizers, llvm-commits

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D58674

llvm-svn: 354902
GitOrigin-RevId: 7821f892bfd64b98b1397bd71582b4b4f5574e37
3 files changed