4743 Fix deprecated /usr/j2se usage in slp and remove from filesystem(5) manpage

*** 2238,2257 ****
  .RE
  
  .sp
  .ne 2
  .na
- \fB\fB/usr/j2se\fR\fR
- .ad
- .sp .6
- .RS 4n
- Java 2 SDK executables, loadable modules, and documentation.
- .RE
- 
- .sp
- .ne 2
- .na
  \fB\fB/usr/java\fI*\fR\fR\fR
  .ad
  .sp .6
  .RS 4n
  Directories containing Java programs and libraries.
--- 2238,2247 ----