refactor: remove fetchOrigin

- use `fetch` then `rebase <branch>` instead
- will consider adding back if needed.

src/main/java/org/nqm/command/GitCommand.java

@@ -133,13 +133,6 @@ void rebaseOrigin(@Parameters(index = "0", paramLabel = "<branch name>") String
     printOutput(forEachModuleDo("rebase", "%s/%s".formatted(ORIGIN, branch)));
   }
 
-  @Deprecated(forRemoval = true)
-  @Command(name = "fetch-origin", aliases = "fo",
-      description = "Download objects and refs specified by branch name from other repositories")
-  void fetchOrigin(@Parameters(index = "0", paramLabel = "<branch name>") String branch) throws IOException {
-    printOutput(forEachModuleDo("fetch", ORIGIN, "%s:%s".formatted(branch, branch)));
-  }
-
   @Command(name = CHECKOUT, aliases = "co", description = "Switch branches or restore working tree files")
   void checkout(@Parameters(index = "0", paramLabel = "<branch name>") String branch) throws IOException {
     printOutput(forEachModuleDo(CHECKOUT, branch));

src/test/java/org/nqm/command/GitCommandIntTest.java

@@ -446,28 +446,6 @@ void checkout_OK() throws IOException {
         "" + tempPath.getFileName());
   }
 
-  @Test
-  void fetchOrigin_OK() throws IOException {
-    // given:
-    var repos = create_clone_gitRepositories("po_1_z", "po_2_zz", "po_3_zzz");
-    gis.init();
-    gis.spinOff("batabranch");
-    commitFile(repos);
-    System.setIn(new ByteArrayInputStream("yes".getBytes()));
-    gis.push("batabranch", true, true, false);
-    gis.spinOff("master");
-    commitFile(repos);
-
-    // when:
-    resetOutputStreamTest();
-    gis.fetchOrigin("batabranch");
-
-    // then:
-    assertThat(stripColors.apply(outCaptor.toString()))
-        .containsExactlyInAnyOrder("po_1_z", "po_2_zz", "po_3_zzz",
-            "" + tempPath.getFileName());
-  }
-
   @Test
   void stash_OK() throws IOException {
     // given: