make fcmpEq plugins follow llvm style guides

LLVM style guides states: make anonymous namespaces as small as possible, and only use them for class declarations.
but fcmpEq plugins were using it for functions. Changed to use static instead

lib/ConvertFCmpEq.cpp

@@ -47,9 +47,7 @@
 using namespace llvm;
 
 // Unnamed namespace for private functions
-namespace {
-
-FCmpInst *convertFCmpEqInstruction(FCmpInst *FCmp) noexcept {
+static FCmpInst *convertFCmpEqInstruction(FCmpInst *FCmp) noexcept {
   assert(FCmp && "The given fcmp instruction is null");
 
   if (!FCmp->isEquality()) {
@@ -115,8 +113,6 @@ FCmpInst *convertFCmpEqInstruction(FCmpInst *FCmp) noexcept {
   return FCmp;
 }
 
-} // namespace
-
 static constexpr char PassArg[] = "convert-fcmp-eq";
 static constexpr char PassName[] =
     "Convert floating-point equality comparisons";

lib/FindFCmpEq.cpp

@@ -45,9 +45,6 @@
 
 using namespace llvm;
 
-// Unnamed namespace for internal functions
-namespace {
-
 static void
 printFCmpEqInstructions(raw_ostream &OS, Function &Func,
                         const FindFCmpEq::Result &FCmpEqInsts) noexcept {
@@ -68,8 +65,6 @@ printFCmpEqInstructions(raw_ostream &OS, Function &Func,
   }
 }
 
-} // namespace
-
 static constexpr char PassArg[] = "find-fcmp-eq";
 static constexpr char PassName[] =
     "Floating-point equality comparisons locator";