Remove \brief commands from doxygen comments.

We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.

Patch produced by

  for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done

Differential Revision: https://reviews.llvm.org/D46290

llvm-svn: 331272
diff --git a/llvm/lib/ProfileData/SampleProf.cpp b/llvm/lib/ProfileData/SampleProf.cpp
index d73f1c4..30438ba 100644
--- a/llvm/lib/ProfileData/SampleProf.cpp
+++ b/llvm/lib/ProfileData/SampleProf.cpp
@@ -88,7 +88,7 @@
 LLVM_DUMP_METHOD void LineLocation::dump() const { print(dbgs()); }
 #endif
 
-/// \brief Print the sample record to the stream \p OS indented by \p Indent.
+/// Print the sample record to the stream \p OS indented by \p Indent.
 void SampleRecord::print(raw_ostream &OS, unsigned Indent) const {
   OS << NumSamples;
   if (hasCalls()) {
@@ -109,7 +109,7 @@
   return OS;
 }
 
-/// \brief Print the samples collected for a function on stream \p OS.
+/// Print the samples collected for a function on stream \p OS.
 void FunctionSamples::print(raw_ostream &OS, unsigned Indent) const {
   OS << TotalSamples << ", " << TotalHeadSamples << ", " << BodySamples.size()
      << " sampled lines\n";