Delete empty file

This is a left-over from r356288 which was reviewed in D58989.

git-svn-id: https://llvm.org/svn/llvm-project/openmp/trunk@366716 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/runtime/src/kmp_taskq.cpp b/runtime/src/kmp_taskq.cpp
deleted file mode 100644
index e69de29..0000000
--- a/runtime/src/kmp_taskq.cpp
+++ /dev/null