[MLIR][NFC] Remove unused MLIRContext declaration

Remove unused MLIRContext declaration. NFC.

Differential Revision: https://reviews.llvm.org/D102103

diff --git a/mlir/lib/Support/MlirOptMain.cpp b/mlir/lib/Support/MlirOptMain.cpp
index a5b4fda..f3f9ec3 100644 (file)
--- a/mlir/lib/Support/MlirOptMain.cpp
+++ b/mlir/lib/Support/MlirOptMain.cpp
@@ -202,7 +202,6 @@ LogicalResult mlir::MlirOptMain(int argc, char **argv, llvm::StringRef toolName,
   std::string helpHeader = (toolName + "\nAvailable Dialects: ").str();
   {
     llvm::raw_string_ostream os(helpHeader);
-    MLIRContext context;
     interleaveComma(registry.getDialectNames(), os,
                     [&](auto name) { os << name; });
   }