Drop support for EOL Python 3.3

manylinux_utils.sh

@@ -23,8 +23,8 @@ function cpython_path {
     local u_suff=u
     # Back-compatibility
     if [ "$u_width" == "u" ]; then u_width=32; fi
-    # For Python >= 3.3, "u" suffix not meaningful
-    if [ $(lex_ver $py_ver) -ge $(lex_ver 3.3) ] ||
+    # For Python >= 3.4, "u" suffix not meaningful
+    if [ $(lex_ver $py_ver) -ge $(lex_ver 3.4) ] ||
         [ "$u_width" == "16" ]; then
         u_suff=""
     elif [ "$u_width" != "32" ]; then

osx_utils.sh

@@ -198,12 +198,7 @@ function install_pip {
     mkdir -p $DOWNLOADS_SDIR
     local py_mm=`get_py_mm`
     local get_pip_path=$DOWNLOADS_SDIR/get-pip.py
-    # pip 18.0 dropped support for Python 3.3
-    if [ "$py_mm" == "3.3" ]; then
-        curl https://bootstrap.pypa.io/3.3/get-pip.py > $get_pip_path
-    else
-	    curl $GET_PIP_URL > $get_pip_path
-    fi
+    curl $GET_PIP_URL > $get_pip_path
     # Python 2.6 will fail SSL check
     if [ "$py_mm" == "2.6" ]; then
         local pip_args="--trusted-host=pypi.org"