fix compile error on Go 1.2 due to scanStringSSE
fix compile error on Go 1.2 due to scanStringSSE

Function's use was disabled anyway, so I commented it out.

sunminghong/ffjson,xladykiller/ffjson,xiuzhifu/ffjson,trigrass2/ffjson,cw2018/ffjson,jamesliu96/ffjson,xyliuke/ffjson,cw2018/ffjson,xiuzhifu/ffjson,jamesliu96/ffjson,xladykiller/ffjson,xyliuke/ffjson,sunminghong/ffjson,cmeon/ffjson,cmeon/ffjson,pquerna/ffjson,pquerna/ffjson,trigrass2/ffjson