[PWGEM/Dilepton] remove axes from outputs

[dsekihat]

[PWGEM/Dilepton] remove axes from outputs

[github-actions]

O2 linter results: ❌ 387 errors, ⚠️ 469 warnings, 🔕 0 disabled

[alibuild]

Error while checking build/O2Physics/o2 for d68aa88 at 2026-06-25 15:03:

## sw/BUILD/O2Physics-latest/log
2026-06-25T14:56:31.390+0200 [24:139946984599168] [buildboxcommon_grpcretrier.cpp:177] [ERROR] Retry limit (0) exceeded for "ActionCache.GetActionResult()", last gRPC error was [14: failed to connect to all addresses; last error: UNKNOWN: ipv4:127.0.0.1:8980: Failed to connect to remote host: Connection refused]
2026-06-25T14:56:31.390+0200 [24:139946984599168] [executioncontext.cpp:544] [ERROR] Error while querying action cache at "http://localhost:8980": 14: failed to connect to all addresses; last error: UNKNOWN: ipv4:127.0.0.1:8980: Failed to connect to remote host: Connection refused
2026-06-25T14:59:52.367+0200 [24:139946984599168] [buildboxcommon_grpcretrier.cpp:177] [ERROR] Retry limit (0) exceeded for "FindMissingBlobs()", last gRPC error was [14: failed to connect to all addresses; last error: UNKNOWN: ipv6:%5B::1%5D:8980: Failed to connect to remote host: Connection refused]
2026-06-25T14:56:31.694+0200 [26:140705970048640] [buildboxcommon_grpcretrier.cpp:177] [ERROR] Retry limit (0) exceeded for "ActionCache.GetActionResult()", last gRPC error was [14: failed to connect to all addresses; last error: UNKNOWN: ipv4:127.0.0.1:8980: Failed to connect to remote host: Connection refused]
2026-06-25T14:56:31.694+0200 [26:140705970048640] [executioncontext.cpp:544] [ERROR] Error while querying action cache at "http://localhost:8980": 14: failed to connect to all addresses; last error: UNKNOWN: ipv4:127.0.0.1:8980: Failed to connect to remote host: Connection refused
2026-06-25T15:00:22.734+0200 [26:140705970048640] [buildboxcommon_grpcretrier.cpp:177] [ERROR] Retry limit (0) exceeded for "FindMissingBlobs()", last gRPC error was [14: failed to connect to all addresses; last error: UNKNOWN: ipv6:%5B::1%5D:8980: Failed to connect to remote host: Connection refused]
2026-06-25T14:56:31.340+0200 [23:140121791352448] [buildboxcommon_grpcretrier.cpp:177] [ERROR] Retry limit (0) exceeded for "ActionCache.GetActionResult()", last gRPC error was [14: failed to connect to all addresses; last error: UNKNOWN: ipv4:127.0.0.1:8980: Failed to connect to remote host: Connection refused]
2026-06-25T14:56:31.340+0200 [23:140121791352448] [executioncontext.cpp:544] [ERROR] Error while querying action cache at "http://localhost:8980": 14: failed to connect to all addresses; last error: UNKNOWN: ipv4:127.0.0.1:8980: Failed to connect to remote host: Connection refused
2026-06-25T15:01:21.124+0200 [23:140121791352448] [buildboxcommon_grpcretrier.cpp:177] [ERROR] Retry limit (0) exceeded for "FindMissingBlobs()", last gRPC error was [14: failed to connect to all addresses; last error: UNKNOWN: ipv6:%5B::1%5D:8980: Failed to connect to remote host: Connection refused]
2026-06-25T14:56:31.709+0200 [25:139643009859200] [buildboxcommon_grpcretrier.cpp:177] [ERROR] Retry limit (0) exceeded for "ActionCache.GetActionResult()", last gRPC error was [14: failed to connect to all addresses; last error: UNKNOWN: ipv4:127.0.0.1:8980: Failed to connect to remote host: Connection refused]
2026-06-25T14:56:31.709+0200 [25:139643009859200] [executioncontext.cpp:544] [ERROR] Error while querying action cache at "http://localhost:8980": 14: failed to connect to all addresses; last error: UNKNOWN: ipv4:127.0.0.1:8980: Failed to connect to remote host: Connection refused
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGEM/Dilepton/Core/DileptonSVMC.h:1777:17: error: unused variable 'deltaPt1' [-Werror=unused-variable]
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGEM/Dilepton/Core/DileptonSVMC.h:1778:17: error: unused variable 'deltaPt2' [-Werror=unused-variable]
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGEM/Dilepton/Core/DileptonSVMC.h:1777:17: error: unused variable 'deltaPt1' [-Werror=unused-variable]
/sw/SOURCES/O2Physics/slc9_x86-64-slc9_x86-64/0/PWGEM/Dilepton/Core/DileptonSVMC.h:1778:17: error: unused variable 'deltaPt2' [-Werror=unused-variable]
ninja: build stopped: subcommand failed.

Full log here.

[alibuild]

Auto-approving on behalf of @dsekihat.