back out Math::BigInt addition, because it is already in main perl package

perl-ds/perl-ds.spec

@@ -35,7 +35,6 @@
 %define       V_tree_simple     1.01
 %define       V_tree_trie       1.0
 %define       V_tree_bptree     1.06
-%define       V_math_bigint     1.70
 
 #   package information
 Name:         perl-ds
@@ -61,7 +60,6 @@ Source6:      http://www.cpan.org/modules/by-module/Tree/Tree-Nary-%{V_tree_nary
 Source7:      http://www.cpan.org/modules/by-module/Tree/Tree-Simple-%{V_tree_simple}.tar.gz
 Source8:      http://www.cpan.org/modules/by-module/Tree/Tree-Trie-%{V_tree_trie}.tar.gz
 Source9:      http://www.cpan.org/modules/by-module/Tree/Tree-BPTree-%{V_tree_bptree}.tar.gz
-Source10:     http://www.cpan.org/authors/id/T/TE/TELS/math/Math-BigInt-%{V_math_bigint}.tar.gz
 
 #   build information
 Prefix:       %{l_prefix}
@@ -83,7 +81,6 @@ AutoReqProv:  no
     - Tree::Simple (%{V_tree_simple})
     - Tree::Trie (%{V_tree_trie})
     - Tree::BPTree (%{V_tree_bptree})
-    - Math::BigInt (%{V_math_bigint})
 
 %track
     prog perl-ds:Bit-Vector = {
@@ -137,11 +134,6 @@ AutoReqProv:  no
         url       = http://www.cpan.org/modules/by-module/Tree/
         regex     = Tree-BPTree-(__VER__)\.tar\.gz
     }
-    prog perl-ds:Math-BigInt = {
-        version   = %{V_math_bigint}
-        url       = http://www.cpan.org/authors/id/T/TE/TELS/math/
-        regex     = Math-BigInt-(__VER__)\.tar\.gz
-    }
 
 %prep
     %setup -q -c
@@ -154,7 +146,6 @@ AutoReqProv:  no
     %setup -q -T -D -a 7
     %setup -q -T -D -a 8
     %setup -q -T -D -a 9
-    %setup -q -T -D -a 10
 
 %build
 
@@ -170,7 +161,6 @@ AutoReqProv:  no
     %{l_prefix}/bin/perl-openpkg -d %{SOURCE7}  configure build install
     %{l_prefix}/bin/perl-openpkg -d %{SOURCE8}  configure build install
     %{l_prefix}/bin/perl-openpkg -d %{SOURCE9}  configure build install
-    %{l_prefix}/bin/perl-openpkg -d %{SOURCE10}  configure build install
     %{l_prefix}/bin/perl-openpkg -F perl-openpkg-files fixate cleanup
     %{l_rpmtool} files -v -ofiles -r$RPM_BUILD_ROOT %{l_files_std} `cat perl-openpkg-files`