Remove Python 2.6

*** 30,56 ****
  PROG=pycurl
  VER=7.43.0
  SUMMARY="Python bindings for libcurl"
  DESC="PycURL provides a thin layer of Python bindings on top of libcurl."
  
! # Pardon the copy/paste, but we have to do this twice (2.6 & 2.7) for now.
! # And the only way buildctl detects packages is by grepping for PKG assignment.
! 
! OLDPV=$PYTHONVER
! 
! set_python_version 2.6
! XFORM_ARGS="-D PYTHONPKGVER=$PYTHONPKGVER"
! PKG=library/python-2/pycurl-26
! RUN_DEPENDS_IPS="runtime/python-26 library/security/openssl@1.0.2 web/curl"
! init
! download_source $PROG $PROG $VER
! patch_source
! prep_build
! python_build
! make_package
! clean_up
! 
  set_python_version 2.7
  XFORM_ARGS="-D PYTHONPKGVER=$PYTHONPKGVER"
  PKG=library/python-2/pycurl-27
  RUN_DEPENDS_IPS="runtime/python-27 library/security/openssl@1.0.2 web/curl"
  init
--- 30,42 ----
  PROG=pycurl
  VER=7.43.0
  SUMMARY="Python bindings for libcurl"
  DESC="PycURL provides a thin layer of Python bindings on top of libcurl."
  
! # In the future when we upgrade python again, be sure to wrap the following
! # around with set_python_version and reassign PKG and RUN_DEPENDS_IPS.
! # The only way buildctl detects packages is by grepping for PKG assignment.
  set_python_version 2.7
  XFORM_ARGS="-D PYTHONPKGVER=$PYTHONPKGVER"
  PKG=library/python-2/pycurl-27
  RUN_DEPENDS_IPS="runtime/python-27 library/security/openssl@1.0.2 web/curl"
  init
*** 58,64 ****
  patch_source
  prep_build
  python_build
  make_package
  clean_up
- 
- set_python_version $OLDPV
--- 44,48 ----