no space after cast instruction

Checked mediawiki/core includes directory for the presence of a space
after a casting instruction. The command used was:

  phpcsmw -v -s \
    --report-summary \
    --sniffs=Generic.Formatting.NoSpaceAfterCast,Generic.Formatting.SpaceAfterCast \
    ./includes

Errors per sniff:

 354 Generic.Formatting.SpaceAfterCast.NoSpace
 60 Generic.Formatting.NoSpaceAfterCast.SpaceFound

So I guess we want to keep the Generic.Formatting.SpaceAfterCast.NoSpace
which ensure there is no whitespace.

Reverts commit a37afbbc59530c25b7c4b6012bdead8ae47b53df

Change-Id: Icaa21217be6a0bb27c0bdc239fd61824fc2a426e