Adapt .tarvis.yml to the C++ -> C change

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu

Author: akosthekiss

.travis.yml

@@ -1,4 +1,4 @@
-language: cpp
+language: c
 
 os: linux
 sudo: required

tools/apt-get-install-deps.sh

@@ -18,5 +18,5 @@
 sudo apt-get update -q
 sudo apt-get install -q -y \
     make cmake ninja-build \
-    gcc g++ gcc-arm-none-eabi \
+    gcc gcc-arm-none-eabi \
     cppcheck vera++