Upgrade to CXX-17 gtest-1.14

Change-Id: I1c7316f151128cbc9318b226dac14950e399d2c7
Signed-off-by: Galantsev, Dmitrii <dmitrii.galantsev@amd.com>

server/CMakeLists.txt

@@ -38,7 +38,7 @@ message("")
 
 ## Compiler flags
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -m64")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse -msse2 -std=c++11 ")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse -msse2")
 # Use this instead of above for 32 bit
 # set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m32")