Removing Serialized backup and restore; functionality is available in legacy releases; functionality is being removed going forward since Spanner classes changed.

[EricBeach]

Removing Serialized backup and restore; functionality is available in legacy releases; functionality is being removed going forward since Spanner classes changed.

[codecov[bot]]

Codecov Report

Merging #137 into dev will increase coverage by 0.9%. The diff coverage is n/a.

@@             Coverage Diff             @@
##                dev     #137     +/-   ##
===========================================
+ Coverage     75.75%   76.66%   +0.9%     
+ Complexity      387      344     -43     
===========================================
  Files            42       34      -8     
  Lines          3535     3257    -278     
  Branches        278      266     -12     
===========================================
- Hits           2678     2497    -181     
+ Misses          760      669     -91     
+ Partials         97       91      -6

Impacted Files	Coverage Δ	Complexity Δ
.../test/java/com/google/cloud/pontem/TestHelper.java	99.85% <ø> (ø)	11 <0> (ø)	:arrow_down:
...main/java/com/google/cloud/pontem/SpannerUtil.java	29.48% <0%> (-19.24%)	18% <0%> (-13%)