remove unneeded references to old tables

[sheridancbio]

Describe changes proposed in this pull request:

• tables pdb_uniprot_alignment and pdb_uniprot_residue_mapping were removed at db version 2.12.12 there is no need to refer to them in cgds.sql or cgds-h2.sql
• whitespace standardization in migration.sql

These changes should have no semantic effect. When installing a new database schema there is no need to purge tables which should not be present and are not created.

Checks

• [ ] The commit log is comprehensible. It follows 7 rules of great commit messages. We can fix this during merge by using a squash+merge if necessary
• [ ] Has tests or has a separate issue that describes the types of test that should be created. If no test is included it should explicitly be mentioned in the PR why there is no test.
• [ ] Is this PR adding logic based on one or more clinical attributes? If yes, please make sure validation for this attribute is also present in the data validation / data loading layers (in backend repo) and documented in File-Formats Clinical data section!
• [ ] Make sure your PR has one of the labels defined in https://github.com/cBioPortal/cbioportal/blob/master/.github/release-drafter.yml

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[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud