Revert of [turbofan] Osr value typing + dynamic type checks on entry.

src/compiler/verifier.cc

Index: src/compiler/verifier.cc
diff --git a/src/compiler/verifier.cc b/src/compiler/verifier.cc
index a192eb2fe689c051d843648eb2e1945ac71ad8f3..3b278993e6c1fdeb4e8a8527d87dd01e046e8cb7 100644
--- a/src/compiler/verifier.cc
+++ b/src/compiler/verifier.cc
@@ -374,23 +374,6 @@
       CHECK_EQ(1, input_count);
       // Type is merged from other values in the graph and could be any.
       CheckTypeIs(node, Type::Any());
-      break;
-    case IrOpcode::kOsrGuard:
-      // OSR values have a value and a control input.
-      CHECK_EQ(1, value_count);
-      CHECK_EQ(1, effect_count);
-      CHECK_EQ(1, control_count);
-      switch (OsrGuardTypeOf(node->op())) {
-        case OsrGuardType::kUninitialized:
-          CheckTypeIs(node, Type::None());
-          break;
-        case OsrGuardType::kSignedSmall:
-          CheckTypeIs(node, Type::SignedSmall());
-          break;
-        case OsrGuardType::kAny:
-          CheckTypeIs(node, Type::Any());
-          break;
-      }
       break;
     case IrOpcode::kProjection: {
       // Projection has an input that produces enough values.