Remove redundant jump to deoptimization (the jump already exists in DoCheckMapCommon)

BUG=none
TEST=none

Review URL: https://codereview.chromium.org/11265044
Patch from Rajeev Krithivasan <rkrithiv@codeaurora.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12828 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

AUTHORS

@@ -45,6 +45,7 @@ Paolo Giarrusso <p.giarrusso@gmail.com>
 Patrick Gansterer <paroga@paroga.com>
 Peter Varga <pvarga@inf.u-szeged.hu>
 Rafal Krypa <rafal@krypa.net>
+Rajeev R Krithivasan <rkrithiv@codeaurora.org>
 Rene Rebe <rene@exactcode.de>
 Robert Mustacchi <rm@fingolfin.org>
 Rodolph Perfetta <rodolph.perfetta@arm.com>

src/arm/lithium-codegen-arm.cc

@@ -4936,7 +4936,6 @@ void LCodeGen::DoCheckPrototypeMaps(LCheckPrototypeMaps* instr) {
   DoCheckMapCommon(temp1, temp2,
                    Handle<Map>(current_prototype->map()),
                    ALLOW_ELEMENT_TRANSITION_MAPS, instr->environment());
-  DeoptimizeIf(ne, instr->environment());
 }