Revert "Merge pull request #138 from overleaf/spd-gdb"

This reverts commit 4267b11fa17282f6eecde62c984baef1f63b21a0, reversing
changes made to 1764b7e9c0a3891955b97136c2fa0d5821b8f40b.

services/git-bridge/Dockerfile

@@ -48,7 +48,7 @@ FROM builder
 
 WORKDIR /
 
-RUN apt-get update && apt-get install -y git sqlite3 procps htop net-tools sockstat binutils graphviz gdb \
+RUN apt-get update && apt-get install -y git sqlite3 procps htop net-tools sockstat binutils graphviz \
  && rm -rf /var/lib/apt/lists
 
 # Install Google Cloud Profiler agent