I'll take a look, thanks. Yes, you're perfectly correct to remove breaks that you are certain are merely artifacts of the print margins.
Someone else asked about what formatting a poem might need. In addition to "lines", poems have larger structures: stanzas, strophes, and verse paragraphs. Perhaps this example will illustrate (from Robert Frost's "Home Burial"):
Code:
1. "Amy! Don't go to someone else this time.
2. Listen to me. I won't come down the stairs."
3. He sat and fixed his chin between his fists.
4. "There's something I should like to ask you, dear."
5.
6. "You don't know how to ask it."
7. "Help me, then."
8.
9. Her fingers moved the latch for all reply.
10.
11. "My words are nearly always an offense."
Note that "lines" are a metrical unit, in this poem. Each line is composed of so many "feet", a unit of patterned stresses. So lines 6 & 7 are in fact a single "line" of poetry.
My numbered lines are there to help explain. Lines 1-4 are a "verse paragraph", a unit of the poem where the husband speaks and the poem describes his action and speech.
The break to line 6 is there to indicate the wife speaks. The husband replies on the same "line", thus the break and indentation on 6/7.
Another blank line, because we shift from the husband's "Help me, then", to the wife's action. So line 9 is both a line and a verse paragraph. Another blank, because line 11 is where the husband begins to speak again (a long speech, so quite a long verse paragraph in the full poem).
To properly format a poem, you need more than simply a static left margin and static indent!
Note: I picked this particular poem because, searching for it online, one runs across versions of it which completely butcher the formatting and so destroy much of the sense and tension of this utterly sad poem.