delete some duplicate initialization

Dependencies

• [2] CNCYMM6A make test initializations a little more obvious
• [3] LF7BWEG4 group all editor globals
• [4] UHB4GARJ left/right margin -> left/right coordinates
• [5] DSLD74DK lots more tests
• [6] LXTTOB33 extract a couple of files

Change contents

• edit in text_tests.lua at line 1736
  [3.12801]→[2.3574:3620](∅→∅)
  − Editor_state = edit.initialize_test_state()
• edit in text_tests.lua at line 1765
  [3.13121]→[2.3667:3713](∅→∅)
  − Editor_state = edit.initialize_test_state()
• edit in text_tests.lua at line 1781
  [3.13387]→[2.3760:3806](∅→∅)
  − Editor_state = edit.initialize_test_state()
• edit in text_tests.lua at line 1801
  [2.3899]→[2.3899:3945](∅→∅)
  − Editor_state = edit.initialize_test_state()