fix(requirements): remove psycopg2 from requirements

apparently, since version 2.8, psycopg2 does not install the binary
version by default (read source), and hence fails on setup with the
error:

Error: pg_config executable not found

since nobody can really be arsed to compile this binary on their own,
we'll stick to using psycopg2-binary instead.

source: https://www.postgresql.org/message-id/CA%2Bmi_8bd6kJHLTGkuyHSnqcgDrJ1uHgQWvXCKQFD3tPQBUa2Bw%40mail.gmail.com

Signed-off-by: Chinmay D. Pai <[email protected]>

Author: Thunderbottom

requirements.txt

@@ -35,7 +35,6 @@ pdfkit==0.6.1
 Pillow==6.2.1
 premailer==3.6.1
 psycopg2-binary==2.8.4
-psycopg2==2.8.4
 pyasn1==0.4.7
 Pygments==2.2.0
 PyJWT==1.7.1
@@ -64,4 +63,4 @@ urllib3==1.25.7
 watchdog==0.8.0
 Werkzeug==0.16.0
 xlrd==1.2.0
-zxcvbn-python==4.4.24
+zxcvbn-python==4.4.24