Remove unused requirements

Add python3 ABI to paddle_build.sh

paddle/scripts/paddle_build.sh

@@ -78,7 +78,7 @@ function cmake_gen() {
             PYTHON_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=/opt/python/cp27-cp27mu/bin/python
         -DPYTHON_INCLUDE_DIR:PATH=/opt/python/cp27-cp27mu/include/python2.7
         -DPYTHON_LIBRARIES:FILEPATH=/opt/_internal/cpython-2.7.11-ucs4/lib/libpython2.7.so"
-        elif [ "$1" == "3.5" ]; then
+        elif [ "$1" == "cp35-cp35m" ]; then
             export LD_LIBRARY_PATH=/opt/_internal/cpython-3.5.1/lib/
             export PATH=/opt/_internal/cpython-3.5.1/bin/:${PATH}
             export PYTHON_FLAGS="-DPYTHON_EXECUTABLE:FILEPATH=/opt/_internal/cpython-3.5.1/bin/python3

python/requirements.txt

@@ -8,4 +8,3 @@ scipy>=0.19.0
 Pillow
 nltk>=3.2.2
 graphviz
-LinkChecker