bitbake: pysh/sherrors.py: Remove unused classes

The only two that we need are ShellSyntaxError and ShellError, others are not
used, so remove them.

(Bitbake rev: abee2ff5ee71bf8c3221cd9d3cd4243ebb4ca273)

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 0 insertions, 26 deletions

diff --git a/bitbake/lib/bb/pysh/sherrors.py b/bitbake/lib/bb/pysh/sherrors.py
index 49d0533de2..3fe8e47b2c 100644
--- a/bitbake/lib/bb/pysh/sherrors.py
+++ b/bitbake/lib/bb/pysh/sherrors.py
@@ -13,29 +13,3 @@ class ShellError(Exception):
 
 class ShellSyntaxError(ShellError):
     pass
-    
-class UtilityError(ShellError):
-    """Raised upon utility syntax error (option or operand error)."""
-    pass
-   
-class ExpansionError(ShellError):
-    pass
-     
-class CommandNotFound(ShellError):
-    """Specified command was not found."""
-    pass
-    
-class RedirectionError(ShellError):
-    pass
-    
-class VarAssignmentError(ShellError):
-    """Variable assignment error."""
-    pass
-    
-class ExitSignal(ShellError):
-    """Exit signal."""
-    pass
-    
-class ReturnSignal(ShellError):
-    """Exit signal."""
-    pass