[scudo] Remove duplicate cmake flags
[scudo] Remove duplicate cmake flags

Summary:
Now that common options are propagated again for runtimes build with D45507,
the -f{data,function}-sections flags are now duplicates, remove them.

Reviewers: alekseyshl

Reviewed By: alekseyshl

Subscribers: mgorny, delcypher, #sanitizers, llvm-commits

Differential Revision: https://reviews.llvm.org/D45575

git-svn-id: c199f293c43da69278bea8e88f92242bf3aa95f7@329925 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt