chore(java): remove gpg pinentry-mode (#1636)

## What does this PR do?

remove gpg pinentry-mode

## Related issues

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## Does this PR introduce any user-facing change?

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- [ ] Does this PR introduce any public API change?
- [ ] Does this PR introduce any binary protocol compatibility change?


## Benchmark

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java/pom.xml

@@ -197,13 +197,6 @@
               <goals>
                 <goal>sign</goal>
               </goals>
-              <configuration>
-                <!-- Prevent `gpg` from using pinentry programs -->
-                <gpgArguments>
-                  <arg>--pinentry-mode</arg>
-                  <arg>loopback</arg>
-                </gpgArguments>
-              </configuration>
             </execution>
           </executions>
         </plugin>