/*
 * Deletes the given paragraph.
 */
public static void deleteParagraph(XWPFParagraph p) {
    if (p != null) {
        List<XWPFRun> runs = p.getRuns();
        //Delete all the runs
        for (int i = runs.size() - 1; i >= 0; i--) {
            p.removeRun(i);
        }
        p.setPageBreak(false); //Remove the eventual page break
    }
}

p.setSpacingAfter(0);
p.setSpacingAfterLines(0);
p.setSpacingBefore(0);
p.setSpacingBeforeLines(0);
p.setIndentFromLeft(0);
p.setIndentFromRight(0);
p.setIndentationFirstLine(0);
p.setIndentationLeft(0);
p.setIndentationRight(0);

import java.io.*;
import org.apache.poi.xwpf.usermodel.*;

import java.awt.Desktop;

import org.apache.poi.openxml4j.exceptions.InvalidFormatException;

public class WordRemoveParagraph {

 /*
  * Deletes the given paragraph.
  */

 public static void deleteParagraph(XWPFParagraph p) {
  XWPFDocument doc = p.getDocument();
  int pPos = doc.getPosOfParagraph(p);
  //doc.getDocument().getBody().removeP(pPos);
  doc.removeBodyElement(pPos);
 }

 public static void main(String[] args) throws IOException, InvalidFormatException {

  XWPFDocument doc = new XWPFDocument(new FileInputStream("source.docx"));

  int pNumber = doc.getParagraphs().size() -1;
  while (pNumber >= 0) {
   XWPFParagraph p = doc.getParagraphs().get(pNumber);
   if (p.getParagraphText().contains("delete")) {
    deleteParagraph(p);
   }
   pNumber--;
  }

  FileOutputStream out = new FileOutputStream("result.docx");
  doc.write(out);
  out.close();
  doc.close();

  System.out.println("Done");
  Desktop.getDesktop().open(new File("result.docx"));

 }

}

cell.removeParagraph(cell.getParagraphs().indexOf(para));