update Makefile

Author: fuli

Makefile

@@ -3,7 +3,7 @@ CC=gcc
 CPP=g++
 AR=ar
 RANLIB=ranlib
-CFLAGS= -g -Wall -Wno-unused-function -std=c++11
+CFLAGS= -g -Wall -Wno-unused-function
 SRCDIR = ./src
 INCLUDEDIR = -I./include -I.
 DEPS = 
@@ -69,7 +69,6 @@ PROGRAMS =  m_based_demo \
 			selection_sort_demo	\
 			8queue_demo \
 			palindrome_demo \
-			suffix_array_demo \
 			suffix_tree_demo \
 			avl_demo