Clean up trade flows

[olejandro]

No description provided.

[github-actions]

Regression test results on commit 7cfe361

         Benchmark    Time (s)                 GDX Diff     Accuracy       Correct    Additional
------------------  ----------  -----------------------  -----------  ------------  ------------
     DemoS_001-all   2.1   2.5            OK         OK  100.0 100.0    118    118      3      3
     DemoS_002-all   2.5   2.5            OK         OK  100.0 100.0    344    344      3      3
     DemoS_003-all   2.7   3.5            OK         OK  100.0 100.0    633    633      6      6
         DemoS_004   2.9   3.3            OK         OK  100.0 100.0    662    662     12     12
        DemoS_004a   2.9   3.0            OK         OK  100.0 100.0    665    665     12     12
DemoS_004a-ie-test   3.0   3.2            OK         OK  100.0 100.0    667    667     12     12
        DemoS_004b   2.9   3.5            OK         OK  100.0 100.0    665    665     12     12
     DemoS_004-all   2.9   3.3            OK         OK  100.0 100.0    667    667     12     12
     DemoS_005-all   3.5   4.0            13         13   99.7  99.7   1160   1160     12     12
     DemoS_006-all   4.1   4.5            13         13   99.7  99.7   1258   1258     12     12
     DemoS_007-all   5.0   5.7            13         13   99.8  99.8   2155   2155     12     12
  DemoS_007-all-1r   3.9   5.0            11         11   99.8  99.8   1179   1179     12     12
     DemoS_008-all   6.9   8.3            13         13   99.9  99.9   5333   5333     18     18
     DemoS_009-all   7.8   9.1            32         32   99.9  99.9   5807   5807     29     29
     DemoS_010-all   8.0   8.9           826        826   88.4  88.4   6139   6139     29     29
     DemoS_011-all   7.9   8.4           856        854   88.0  88.0   6150   6150     29     29
     DemoS_012-all   8.4   8.3           903        903   88.2  88.2   6306   6306     53     53
  DemoS_special-t1   4.2   4.1  Error runn… Error runn…   92.2  92.2   2108   2108     42     42
      TIMES-IE-all  23.0  22.8          3125       3125   97.5  97.5  42461  42461   2826   2826
      TIMES-IE-NoM  20.6  20.8           357        357   99.3  99.3  40529  40529    632    632
      TIMES-IE-MCB  21.4  20.2          1100       1100   97.6  97.6  42068  42068    632    632
      TIMES-NZ-KEA  25.2  24.0          3918       3869   98.3  98.3  76417  76417    456    409
      TIMES-NZ-TUI  17.3  17.1          3952       3903   98.3  98.3  76043  76043    472    425

2025-02-04 00:08:33.841 |     INFO : Total runtime: 196.15s (main: 188.92s)
2025-02-04 00:08:33.841 |     INFO : Change in runtime (negative == faster): +7.23s (+3.8%)
2025-02-04 00:08:33.841 |     INFO : Change in correct rows (higher == better): +0 (+0.0%)
2025-02-04 00:08:33.842 |     INFO : Change in additional rows: -94 (-1.8%)
2025-02-04 00:08:33.842 |  SUCCESS : No regressions. You're awesome!

This comment will be updated when new commits are added to the PR.