read_symlink: remove unneeded check

Author: scivision

+stdlib/+fileio/is_symlink.m

@@ -8,7 +8,8 @@
 
 if isMATLABReleaseOlderThan("R2024b")
   % must be absolute path
-  ok = java.nio.file.Files.isSymbolicLink(java.io.File(stdlib.fileio.absolute_path(p)).toPath());
+  p = stdlib.fileio.absolute_path(p);
+  ok = java.nio.file.Files.isSymbolicLink(java.io.File(p).toPath());
 else
   ok = isSymbolicLink(p);
 end

+stdlib/+fileio/read_symlink.m

@@ -8,15 +8,16 @@
 
 if isMATLABReleaseOlderThan("R2024b")
 
-if ~stdlib.fileio.is_symlink(p) || ~stdlib.fileio.exists(p)
+if ~stdlib.fileio.is_symlink(p)
   return
 end
 
 r = stdlib.fileio.absolute_path(p);
 
 % https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/nio/file/Files.html#readSymbolicLink(java.nio.file.Path)
 % must be absolute path
-r = stdlib.fileio.posix(java.nio.file.Files.readSymbolicLink(java.io.File(r).toPath()));
+r = stdlib.fileio.posix(...
+      java.nio.file.Files.readSymbolicLink(java.io.File(r).toPath()));
 
 else
   [ok, t] = isSymbolicLink(p);