[wasm] Remove single function JIT support.

test/mjsunit/wasm/default-func-call.js

-// Copyright 2015 the V8 project authors. All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Flags: --expose-wasm
-// Flags: --wasm-jit-prototype
-
-load("test/mjsunit/wasm/wasm-constants.js");
-load("test/mjsunit/wasm/wasm-module-builder.js");
-
-var module = (function () {
-  var builder = new WasmModuleBuilder();
-
-  var sig_index = builder.addType(kSig_i_ii);
-  builder.addPadFunctionTable(512);
-  builder.addImport("add", sig_index);
-  builder.addFunction("add", sig_index)
-    .addBody([
-      kExprGetLocal, 0, kExprGetLocal, 1, kExprCallImport, kArity2, 0
-    ]);
-  builder.addFunction("sub", sig_index)
-    .addBody([
-      kExprGetLocal, 0,             // --
-      kExprGetLocal, 1,             // --
-      kExprI32Sub,                  // --
-    ]);
-  builder.addFunction("main", kSig_i_iii)
-    .addBody([
-      kExprGetLocal, 0,
-      kExprGetLocal, 1,
-      kExprGetLocal, 2,
-      kExprCallIndirect, kArity2, sig_index
-    ])
-    .exportFunc()
-  builder.appendToTable([0, 1, 2]);
-
-  return builder.instantiate({add: function(a, b) { return a + b | 0; }});
-})();
-
-// Check the module exists.
-assertFalse(module === undefined);
-assertFalse(module === null);
-assertFalse(module === 0);
-assertEquals("object", typeof module.exports);
-assertEquals("function", typeof module.exports.main);
-
-assertEquals(5, module.exports.main(1, 12, 7));
-assertEquals(19, module.exports.main(0, 12, 7));
-
-assertTraps(kTrapFuncSigMismatch, "module.exports.main(2, 12, 33)");
-assertTraps(kTrapFuncSigMismatch, "module.exports.main(4, 12, 33)");
-assertTraps(kTrapFuncSigMismatch, "module.exports.main(511, 12, 33)");
-assertTraps(kTrapFuncInvalid, "module.exports.main(512, 12, 33)");
-assertTraps(kTrapFuncInvalid, "module.exports.main(1025, 12, 33)");
-assertTraps(kTrapFuncInvalid, "module.exports.main(-1, 12, 33)");