requirements: Remove socialauth.txt recursive dep file.

requirements/README.md

@@ -4,9 +4,6 @@ The dependency graph of the requirements is as follows:
 dev         prod
 + +          +
 | +->common<-+
-|     |
-|     v
-|   socialauth
 v
 mypy,docs,py3k
 ```

requirements/common.txt

@@ -176,4 +176,4 @@ py3dns==3.1.0
 pyldap==2.4.37
 
 # Install Python Social Auth
--r socialauth.txt
+social-auth-app-django==1.2.0

requirements/dev_lock.txt

@@ -109,7 +109,7 @@ pyopenssl==17.0.0         # via ndg-httpsclient, scrapy, service-identity
 python-dateutil==2.6.1    # via arrow, botocore, moto
 python-gcm==0.4
 python-twitter==3.3
-python3-openid==3.1.0
+python3-openid==3.1.0     # via social-auth-core
 pytz==2017.2
 pyyaml==3.12              # via pyaml
 queuelib==1.4.2           # via scrapy
@@ -130,7 +130,7 @@ six==1.10.0
 smmap==0.9.0
 snowballstemmer==1.2.1
 social-auth-app-django==1.2.0
-social-auth-core==1.4.0
+social-auth-core==1.4.0   # via social-auth-app-django
 sockjs-tornado==1.0.3
 sourcemap==0.2.1
 sphinx-rtd-theme==0.2.4

requirements/prod_lock.txt

@@ -79,7 +79,7 @@ pyopenssl==17.2.0         # via ndg-httpsclient
 python-dateutil==2.6.1
 python-gcm==0.4
 python-twitter==3.3
-python3-openid==3.1.0
+python3-openid==3.1.0     # via social-auth-core
 pytz==2017.2
 redis==2.10.6
 regex==2017.7.28
@@ -91,7 +91,7 @@ simplejson==3.11.1
 six==1.10.0
 smmap==0.9.0
 social-auth-app-django==1.2.0
-social-auth-core==1.4.0
+social-auth-core==1.4.0   # via social-auth-app-django
 sockjs-tornado==1.0.3
 sourcemap==0.2.1
 sqlalchemy==1.1.13

requirements/socialauth.txt

@@ -1,3 +0,0 @@
-social-auth-core==1.4.0
-social-auth-app-django==1.2.0
-python3-openid==3.1.0