Remove ancient pypy-dev branches

plugins/python-build/share/python-build/pypy-1.7-dev

@@ -1,3 +0,0 @@
-#require_gcc
-install_package "openssl-1.0.2k" "https://www.openssl.org/source/openssl-1.0.2k.tar.gz#6b3977c61f2aedf0f96367dcfb5c6e578cf37e7b8d913b4ecb6643c3cb88d8c0" mac_openssl --if has_broken_mac_openssl
-install_hg "pypy-1.7-dev" "https://bitbucket.org/pypy/pypy" "release-1.7.x" "pypy_builder" verify_py27 ensurepip

plugins/python-build/share/python-build/pypy-1.8-dev

@@ -1,3 +0,0 @@
-#require_gcc
-install_package "openssl-1.0.2k" "https://www.openssl.org/source/openssl-1.0.2k.tar.gz#6b3977c61f2aedf0f96367dcfb5c6e578cf37e7b8d913b4ecb6643c3cb88d8c0" mac_openssl --if has_broken_mac_openssl
-install_hg "pypy-1.8-dev" "https://bitbucket.org/pypy/pypy" "release-1.8.x" "pypy_builder" verify_py27 ensurepip

plugins/python-build/share/python-build/pypy-1.9-dev

@@ -1,3 +0,0 @@
-#require_gcc
-install_package "openssl-1.0.2k" "https://www.openssl.org/source/openssl-1.0.2k.tar.gz#6b3977c61f2aedf0f96367dcfb5c6e578cf37e7b8d913b4ecb6643c3cb88d8c0" mac_openssl --if has_broken_mac_openssl
-install_hg "pypy-1.9-dev" "https://bitbucket.org/pypy/pypy" "release-1.9.x" "pypy_builder" verify_py27 ensurepip

plugins/python-build/share/python-build/pypy-2.0-dev

@@ -1,3 +0,0 @@
-#require_gcc
-install_package "openssl-1.0.2k" "https://www.openssl.org/source/openssl-1.0.2k.tar.gz#6b3977c61f2aedf0f96367dcfb5c6e578cf37e7b8d913b4ecb6643c3cb88d8c0" mac_openssl --if has_broken_mac_openssl
-install_hg "pypy-2.0-dev" "https://bitbucket.org/pypy/pypy" "release-2.0.x" "pypy_builder" verify_py27 ensurepip