remove the alloca.h because of #1294
remove the alloca.h because of #1294

JerryScript-DCO-1.0-Signed-off-by: Zidong Jiang zidong.jiang@intel.com

jack60504/jerryscript,loki04/jerryscript,slaff/jerryscript,LaszloLango/jerryscript,grgustaf/jerryscript,tilmannOSG/jerryscript,robertsipka/jerryscript,robertsipka/jerryscript,tilmannOSG/jerryscript,tilmannOSG/jerryscript,grgustaf/jerryscript,slaff/jerryscript,robertsipka/jerryscript,jack60504/jerryscript,gabrielschulhof/jerryscript,jerryscript-project/jerryscript,grgustaf/jerryscript,akosthekiss/jerryscript,bsdelf/jerryscript,jerryscript-project/jerryscript,martijnthe/jerryscript,dbatyai/jerryscript,jack60504/jerryscript,slaff/jerryscript,jack60504/jerryscript,jerryscript-project/jerryscript,glistening/jerryscript,yichoi/jerryscript,gabrielschulhof/jerryscript,grgustaf/jerryscript,glistening/jerryscript,zherczeg/jerryscript,zherczeg/jerryscript,bzsolt/jerryscript,jack60504/jerryscript,robertsipka/jerryscript,akosthekiss/jerryscript,dbatyai/jerryscript,bzsolt/jerryscript,loki04/jerryscript,robertsipka/jerryscript,LeeHayun/jerryscript,LaszloLango/jerryscript,loki04/jerryscript,yichoi/jerryscript,martijnthe/jerryscript,grgustaf/jerryscript,bsdelf/jerryscript,martijnthe/jerryscript,LaszloLango/jerryscript,LeeHayun/jerryscript,akosthekiss/jerryscript,akosthekiss/jerryscript,zherczeg/jerryscript,glistening/jerryscript,jerryscript-project/jerryscript,gabrielschulhof/jerryscript,jerryscript-project/jerryscript,loki04/jerryscript,akosthekiss/jerryscript,bzsolt/jerryscript,bzsolt/jerryscript,glistening/jerryscript,tilmannOSG/jerryscript,dbatyai/jerryscript,martijnthe/jerryscript,zherczeg/jerryscript,glistening/jerryscript,LaszloLango/jerryscript,bsdelf/jerryscript,bsdelf/jerryscript,bsdelf/jerryscript,grgustaf/jerryscript,bsdelf/jerryscript,loki04/jerryscript,LaszloLango/jerryscript,martijnthe/jerryscript,yichoi/jerryscript,bzsolt/jerryscript,slaff/jerryscript,dbatyai/jerryscript,yichoi/jerryscript,slaff/jerryscript,jack60504/jerryscript,gabrielschulhof/jerryscript,LeeHayun/jerryscript,martijnthe/jerryscript,yichoi/jerryscript,gabrielschulhof/jerryscript,dbatyai/jerryscript,LeeHayun/jerryscript,tilmannOSG/jerryscript,zherczeg/jerryscript,loki04/jerryscript,robertsipka/jerryscript,LeeHayun/jerryscript,glistening/jerryscript