tools: Remove unused munge-postgres-logs.
tools: Remove unused munge-postgres-logs.

This hasn't been used in several years.

hackerkid/zulip,timabbott/zulip,hackerkid/zulip,tommyip/zulip,andersk/zulip,zulip/zulip,hackerkid/zulip,rishig/zulip,rht/zulip,shubhamdhama/zulip,punchagan/zulip,punchagan/zulip,hackerkid/zulip,shubhamdhama/zulip,hackerkid/zulip,kou/zulip,tommyip/zulip,rishig/zulip,showell/zulip,showell/zulip,eeshangarg/zulip,brainwane/zulip,tommyip/zulip,dhcrzf/zulip,timabbott/zulip,punchagan/zulip,showell/zulip,dhcrzf/zulip,brainwane/zulip,zulip/zulip,dhcrzf/zulip,kou/zulip,jackrzhang/zulip,tommyip/zulip,showell/zulip,rht/zulip,punchagan/zulip,shubhamdhama/zulip,jackrzhang/zulip,timabbott/zulip,tommyip/zulip,hackerkid/zulip,tommyip/zulip,hackerkid/zulip,kou/zulip,jackrzhang/zulip,showell/zulip,zulip/zulip,rht/zulip,showell/zulip,punchagan/zulip,synicalsyntax/zulip,jackrzhang/zulip,timabbott/zulip,andersk/zulip,andersk/zulip,rishig/zulip,rishig/zulip,jackrzhang/zulip,synicalsyntax/zulip,rht/zulip,synicalsyntax/zulip,shubhamdhama/zulip,synicalsyntax/zulip,synicalsyntax/zulip,dhcrzf/zulip,rht/zulip,rishig/zulip,synicalsyntax/zulip,eeshangarg/zulip,rishig/zulip,jackrzhang/zulip,eeshangarg/zulip,eeshangarg/zulip,shubhamdhama/zulip,andersk/zulip,andersk/zulip,eeshangarg/zulip,tommyip/zulip,brainwane/zulip,brainwane/zulip,timabbott/zulip,timabbott/zulip,zulip/zulip,dhcrzf/zulip,punchagan/zulip,shubhamdhama/zulip,dhcrzf/zulip,andersk/zulip,timabbott/zulip,shubhamdhama/zulip,brainwane/zulip,kou/zulip,rht/zulip,punchagan/zulip,eeshangarg/zulip,kou/zulip,brainwane/zulip,rishig/zulip,kou/zulip,dhcrzf/zulip,zulip/zulip,kou/zulip,rht/zulip,zulip/zulip,jackrzhang/zulip,showell/zulip,eeshangarg/zulip,zulip/zulip,brainwane/zulip,andersk/zulip,synicalsyntax/zulip