Remove unneeded whitespace in synopses

Author: tkoeppe

source/algorithms.tex

@@ -29,7 +29,6 @@
 #include <initializer_list>
 
 namespace std {
-
   // \ref{alg.nonmodifying}, non-modifying sequence operations:
   template <class InputIterator, class Predicate>
     bool all_of(InputIterator first, InputIterator last, Predicate pred);

source/numerics.tex

@@ -2521,7 +2521,6 @@
 #include <initializer_list>
 
 namespace std {
-
  // \ref{rand.eng.lcong}, class template linear_congruential_engine
  template<class UIntType, UIntType a, UIntType c, UIntType m>
    class linear_congruential_engine;
@@ -6470,7 +6469,6 @@
 #include <initializer_list>
 
 namespace std {
-
   template<class T> class valarray;         // An array of type \tcode{T}
   class slice;                              // a BLAS-like slice out of an array
   template<class T> class slice_array;

source/strings.tex

@@ -595,7 +595,6 @@
 #include <initializer_list>
 
 namespace std {
-
   // \ref{char.traits}, character traits:
   template<class charT> struct char_traits;
   template<> struct char_traits<char>;