Remove Python 2.6

*** 30,45 ****
  PROG=jsonschema
  VER=2.5.1
  SUMMARY="An implementation of JSON Schema validation for Python"
  DESC="$SUMMARY"
  
! # Pardon the copy/paste, but we have to do this for 2.7 for now.
! # And the only way buildctl detects packages is by grepping for PKG assignment.
! 
! OLDPV=$PYTHONVER
! 
! set_python_version 2.7
  XFORM_ARGS="-D PYTHONVER=$PYTHONVER"
  PKG=library/python-2/jsonschema-27
  RUN_DEPENDS_IPS="runtime/python-27"
  init
  download_source $PROG $PROG $VER
--- 30,42 ----
  PROG=jsonschema
  VER=2.5.1
  SUMMARY="An implementation of JSON Schema validation for Python"
  DESC="$SUMMARY"
  
! # 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.
  XFORM_ARGS="-D PYTHONVER=$PYTHONVER"
  PKG=library/python-2/jsonschema-27
  RUN_DEPENDS_IPS="runtime/python-27"
  init
  download_source $PROG $PROG $VER
*** 46,52 ****
  patch_source
  prep_build
  python_build
  make_package
  clean_up
- 
- set_python_version $OLDPV
--- 43,47 ----