Revert "[WebAssembly] LSDA info generation"

This reverts commit r344575.
Newly introduced test eh-lsda.ll.test fails with use-after-free under
ASAN build.

llvm-svn: 344639
diff --git a/llvm/lib/CodeGen/WasmEHPrepare.cpp b/llvm/lib/CodeGen/WasmEHPrepare.cpp
index 6f02a05..83d04da 100644
--- a/llvm/lib/CodeGen/WasmEHPrepare.cpp
+++ b/llvm/lib/CodeGen/WasmEHPrepare.cpp
@@ -300,7 +300,7 @@
   // This is to create a map of <landingpad EH label, landingpad index> in
   // SelectionDAGISel, which is to be used in EHStreamer to emit LSDA tables.
   // Pseudocode: wasm.landingpad.index(Index);
-  IRB.CreateCall(LPadIndexF, {FPI, IRB.getInt32(Index)});
+  IRB.CreateCall(LPadIndexF, IRB.getInt32(Index));
 
   // Pseudocode: __wasm_lpad_context.lpad_index = index;
   IRB.CreateStore(IRB.getInt32(Index), LPadIndexField);