Remove invalid asserts from last commit.

TBR=erik.corry@gmail.com
Review URL: http://codereview.chromium.org/4094010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5745 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/ia32/stub-cache-ia32.cc

@@ -227,7 +227,6 @@ void StubCache::GenerateProbe(MacroAssembler* masm,
 
   // Check scratch and extra registers are valid, and extra2 is unused.
   ASSERT(!scratch.is(no_reg));
-  ASSERT(!extra.is(no_reg));
   ASSERT(extra2.is(no_reg));
 
   // Check that the receiver isn't a smi.

src/x64/stub-cache-x64.cc

@@ -291,7 +291,6 @@ void StubCache::GenerateProbe(MacroAssembler* masm,
 
   // Check scratch register is valid, extra and extra2 are unused.
   ASSERT(!scratch.is(no_reg));
-  ASSERT(extra.is(no_reg));
   ASSERT(extra2.is(no_reg));
 
   // Check that the receiver isn't a smi.